I would say not doable. Concerns would be heating and condensation. Also you need infrastructure... IE water source and supplies. You wouldn't be able to load it with enough food etc to get you through a winter. Sorry to be negative but there are a lot of "cons" to that plan. A vehicle that large would need roads as well as solid ground. You wouldn't be able to drive it across a field to hide it. Come spring you would be putting your efforts into getting ground ready and planting. Not much time or energy to build something to live in. Just my 2 cents

Stay put. Your odds of riding it out at home with kids are a lot higher than elsewhere.

I have an older 28 foot travel trailer. That thing will go anywhere my truck can pull it.

Having said that, I have to agree with the other opinions. Being cooped up for a week inside that trailer (badly rained out camping trip) with another adult and two kids (5 and 9) wasn't a joy at all. The tanks (fuel, waste and potable water) are not ample enough to supply extended needs. Also, despite my trailer having a furnace in it, it either had to be cranked to keep it heated - which ate my propane - or an electric space heater was used...which required power.

I spent 5 days in it during winter on a snowmobiling trip once. It sucked. I went through a lot of propane to keep it heated enough that the lines didn't freeze. Keeping it heated enough isn't keeping it comfortable at all. I'd like to put a woodstove in it. I've not done it yet though.

Runs With Scissors

To start with let me just say that my wife and I have been living “full time” in our 5th wheel trailer for a number of years now and while it is a little more than 10 feet longer than yours it is still much more than adequate for both her and I, and if we had young children, for them as well.
I have seen families living in travel trailers throughout the winter and they all manage to still be alive come spring, even without the benefit of extra insulation, not saying that more insulation wouldn’t help.
What you do need in a trailer, as people need in houses, is a constant source of water, somewhere sanitary to dispose of sewage and either an electrical outlet or some way to have power (solar, wind) along with propane to use for heating and cooking as well.
I would venture to say at this point not to panic and continue living your normal life but also take steps to prepare you and your wife as well as your kids for getting outta Dodge if and when you need to. As the kids get older I would take them camping either in the trailer or possibly tenting so that they can get used to a different lifestyle, even if it is only for a few weeks at a time.
This will prepare them in advance for possible changes as well as allowing you and your wife to work out any bugs with trailer living and let you know how being at close quarters for extended periods of time works for the family.
If you intend to use your trailer for winter living you have lots of time prepare and do things such as adding extra insulation and when you get to your bug out location you can even build a straw bale surround that works very well for keeping things much warmer inside. I have even seen some folks who have built a "house" around their trailer and they were doing quite well.
Every person as well as family is unique and what may drive some people crazy could be heaven for you and yours. Take time and prepare in advance and you will benefit from it greatly.

Thanks, to all who replied. It helps to get different points of view other than my own. Now that being said, I am in the process of purchasing a motorhome, could I use good spray foam to insulate the underneath, along with piping? Plus I have a 6x12 cargo trailer for all my rations, water collection, power accumulation ( solar & wind ). And most other goodies I believe we may need in the foreseeable future. For now we will be staying put, but if SHTF got to the point of needing to bug out I would like to just load the kids and go as quickly as possible. Before we're on lock down, or have military blockades up.
I am one women with a lot of determination and know-how. I am self reliant, with a getter done attitude.

I pity the fool that tries to mess with you or your cubs, mamabear!

While I know a bit about trailers and motorhomes I do not know enough, especially regarding insulating (spray foam) and whether it will it give you what you want. What I do suggest though is for you to contact a motorhome dealer, preferably one who deals in the brand you are buying and get their professional input.
Best of luck.

Thanks, great suggestion Captain Ahab.
I will do just that. Not to mention, I'm going to ask which parts within a motorhome could be changed out with universal parts if needed. Other than the LP system, I believe that I could fix most everything else on my own if it came down to it.

De L'eau, so are completely right in that department. I would protect to the death if need be.

Knowing the situation you have and the climate in and around the Fraser valley lower main land and the types of folks you may be dealing with, I would say it is a good plan....Not much chance of driving across fields in BC, and lots of places to hide out....My suggestion would be south and across the number 3 good area low population....learn the area and places to go...all the way over to midway and area. I do have to agree with others, with 5 kids your not going to have time to build squat.....May I suggest you learn how to get to some of the bigger ranches in and around the Merritt, Nicola valley, a woman with 5 kids, they will help you....

Thanks Traveller,

Well put. Some of my children, okay 2 are 16 and 14 year old boys. Funny you should mention that area. That's where I've been looking towards. Although never thought of looking at the ranches at all.

mamabear, im guessing you know kids get sick alot, you definitely want a good quality shelter and to learn about all the common sicknesses that kids get and stock up on the meds for it. the kids will also get bored, so i suggest a solar panel and one of those portable dvd players so they can still watch barney the dinasour when the SHTF. i think you should be fine if you can controll sickness and them being generally bored. at that age i imagine they are pretty easy to entertain, but if its a teotwawki situation you will be in deep poo poo with kids to look after, saying that humans will be in deep poo poo without kids.

I love that idea myself, as a backup. I would prefer to stay at home as long as possible, but there are issues with leaving later then.
I personally don't think that there is a better bug out option, aside from a proper B.O.L. that is hidden and well stocked.
An R.V. just has everything I would need to protect my kids, and be the most comfortable in most situations. The only suggestion I might offer is camouflage, maybe spray paint some old sheets to drape over it when you get to your destination.

Faraday,
That's what I was also thinking. Buy some cammo tarps and some plain green ones along with white ones for winter snowfall. I am also going to bring some spray paint to use on the plain green ones if necessary. Slowly but surely things are coming together.

Good for you mamabear! Being a single Mom of 2 littles (9 and 5), I've thought about what I would do in a BO situation, having no BOL to go to. I thought an RV would probably be the best way to go. Unfortunately I'm not able to go that route at this time, so my preps are geared at staying put. But if you have the means, I say go for it.