Find one in generally good condition and without leaks.
Water damage does all sorts of stuff usually visible as stains, bulges, separations. Also softness or flex in areas that should be rigid. Often, the rig will smell moldy or mildewy even after being aired out.
Do a search on water damage on this forum. Then just go look at campers. You will have it figured out in no time. In an older camper, condition is the most important thing. Some campers are used or abused. Some are maintained, others not.
There are any number of makes, makes or floorplans that might work for you and your family. The trick is to get a camper in decent condition that will last a while, be fun to use, and still have some resale value when you are done with it.
Just start looking. Have fun.
