I don't understand the cheap part of your question, if you want quality for nothing you may need to be looking at tents in the $4000.00 range. Four Wheel campers are not in the $4000.00 range. Just saying. Ron
Maybe I can help explain it. I don't have a lot of money for a slide in camper. What I do have is a bunch of tools and a love of building.
Therefore, If I can buy a 20 year old camper and completely gut it and make it my own, then I will be having a great time.