I have an old tent trailer frame that I had originally planned on using for my standy, but well one thing led to another and its not big enough, but I'm sure it would work well for someone here. I spent a bunch of time cleaning and prepping the frame, applying blue steel, and rust paint on the frame, and I bought a new 2000 lb axle with electric brakes, although it seems to have collected some surface rust. It has just sat in the driveway all tarped up.
I have a spare tire, and the rv stove, and fridge both are/were in working condition, a water tank and all the bits and bobs from when it was a tent trailer, except the canvas, plus some brand new edge material. I also put a new plywood deck on it, I think its 3/4" tongue and groove.
I'm willing to talk price, as I may have priced this a bit on the high side to start, but here is the ad on craigslist: https://vancouver.craigslist.ca/rds/tro/6673967142.html