I think it is a hard-core survival concept if you have the resources. People and relatives I know who live on farms and rebuild their trucks over and over that could work for. Maybe it could work if you and your spouse want a similar vehicle. Otherwise it could be a real pain in the butt and more trouble than it's worth.

If you make your own homemade trailer out of an old pickup truck bed of course the tires can be the same size. Seen plenty of them. Then again I've seen plenty of them discarded as worthless. Are there manufacturers that make full-size tires on trailers? I haven't seen any lately, but I haven't paid much attention either.