I found a 1986 (Landmark?) pop up camper for sale for a couple hundred dollars. I'm pretty sure that I'll buy it but wanted to get an opinion from someone else.
Its 6'6"x9' unopened and the frame has basically no rust. The roof is shot and the owner ripped the canvas out because it was in bad condition. It has the original three burner propane stove, sink, and a portably potty which look to be in great shape. The only downside I can see to it is that it has 8" wheels instead of 12" but I'm assuming that I can swap those out fairly easily.
I'm thinking it would be a good candidate for a trailer rebuild. What do you all think?