Well this is more of a chop, hack and rebuild, high speed sort of.
Bought this old camperette
Referenced here http://www.tnttt.com/viewtopic.php?f=2&t=58116
Was gonna use it the way it was for a quick trip, but,,,,hmmmm, I had to be me and can't leave anything alone.
Plus its in rough shape, I hated having to have the tailgate down and so on and so on....
So.....First order was cutting that bottom back so I could put an insulated floor under it
so I made a frame 5/8 ply, 2x4 perimeter, 1/2 foil backed foam and a couple 2x4 Preasure treated skids, Lifted the capmer, pulled the skids out that I brought it home on, and slid the new sub-floor under the camper, set the camper down onto it and screwed away to make it one.