Ten years ago, I sold my brother a small pop up "coleman" type trailer (maybe Jayco, I really don't remember).. It cranks up, and has two front and rear push out beds and canvas that opens up. It has/had nice canvas, and a sink, propane stove, propane refrigerator, toilet and shower, water heater and IIRC central heat, its small but will sleep four easily. Its sat for years, and will need new tires, wheel bearings repacked, etc. Its been so long since I sold it to him I really don't remember the rest of the unit, I think it had surge brakes on the hitch.
Otherwise in good shape when I sold it to him, but frankly its sat for 10 years and I have no idea what condition it is in. But its been sitting 2 doors down from my house in southern California.
He's getting divorced and would sell it to you for nothing, like you pick it up and drive it away type of nothing (I think). If interested, I could go down and open it up and take some pics. I owe my brother nothing, and am not biased in the least.
It had no rust issues and had never been wrecked.
Sort of like this, but 20 years old. A 6 Cyl Tacoma would tow it easily.
http://www.jayco.com/products/camping-trailers/2015-jay-series-sport/