DrewE wrote:
By the time you've put siding on the outside walls, gutted the inside walls, possibly reinforced the trailer structure, redid the plumbing systems for reliable cold-weather operation, and replaced the running gear of the trailer, how much of the trailer is actually left? I suspect it would be easier and possibly cheaper overall to start with a substantial flatbed trailer (or some other trailer frame) and build on top of that.
It might be worthwhile to buy a beat up RV if you can find one that has good appliances and other parts you can use just for those parts...or possibly not if you're creative with sourcing stuff. A small residential fridge would be more economical and probably give better service for a tiny house than an RV fridge, for instance.
+1 for this idea. If you read this forum much, you'll find there are quite a few campers with leaking roofs that are totaled or not fixed up.