A few suggestions.

Washboard - Home Hardware
Cast Iron Cookware - Home Hardware, Canadian Tire
Cots - Bass Pro, Cabellas
Hand Wringer - http://experttoolshop.com/en/170-manual-clothes-wringer-with-wall-bracket.html .... a little pricy. You could substitute a bucket and mop wringer
Here is a link for a complete antique hand powered washing machine with wringer. http://richmondhill.canadianlisted.com/art-antiques/antique-washing-machine_923529.html

For the cast iron cookware, you could try the thrift stores or second hand stores sometimes. We found a few items at our local thrift store for much cheaper and in excellent condition.

For washing clothes you might try one these items they are probably quite a bit easier than user a washboard & hand wringer. Use less water too
http://www.cleanairgardening.com/portable-washing-machine.html

http://www.hsn.com/home-solutions/the-laundry-pod-eco-friendly-portable-manual-washing-machine_p-6465287_xp.aspx

Actually you could use a five gallon plastic bucket with a lid and a hole cut in the top and a regulatr toilet plunger to make a washing machine for clothes.

Thread the handle of an ordinary toilet plunger (new - not used thank you) up through the hole so the bell is down in the bucket and the handle sticks up through the small hole in the lid and you have a primitive clothes washing machine. Pump the plunger up and down to agitate the clothes.

Thrift and second hand shops are good for cast iron pots, but not at this time of year because a lot of hunters grab them. You might want to wait till closer to Christmas. And for clothes remember to put them outside (if there is no one around to steal them) in the pouring rain. Or wear them out and get a shower too-lol.

For clothes washing I have this and am attaching it to a hand crank. Bought it years ago and never ended up using it for its purpose. Turns out I have a new one for it.
It was about 20 bucks at the time

http://www.rona.ca/en/ciment---concrete-mixer

Based on personal experience............. you will need bar soap and a scrub brush if you plan on using a wash board. The Hand wringer for laundry (rollers) is a pain in the butt to use and body parts can get caught. Just easier to wring out by hand. Mine just sits upstairs on the floor for "decoration" now. Love Forward's idea with the toilet plunger.

I realize it doesn't answer your question but thought you should know the practical side of using the laundry stuff.

i personally had not thought of washing clothes as being an issue...that's the beauty of this site...
...there are some excellent links here, and good ideas 💡

For clothes washing I have this and am attaching it to a hand crank. Bought it years ago and never ended up using it for its purpose. Turns out I have a new one for it.
It was about 20 bucks at the time

http://www.rona.ca/en/ciment---concrete-mixer

I thought of this also for laundry...I used one once for mixing cement and well...it sucked a big one!
Now they are about $40.00, but could work well as a manual laundry tub when used with a hand crank or even hooked up to an old bicycle.

Thanks for letting me know it is garbage for its intended purpose. Rather know now than use it and get full hot under the collar.

I DID see one unique example. A guy made a laundry washing machine out of a 55 gallon drum. He powered it with a bicycle made out of bamboo and vines for bicycle chains and...

WHAT? The Skipper and Gilligan wore the same clothes for 3 years and they were never dirty so it must work just fine! 🙂

Thanks everyone for all the great responses.
Thanks to all of you, I feel a bit more prepared than I was.

Rain 🙂