Here is what I found when I tore into the back end Of the trailer.
http://s38.photobucket.com/albums/e103/87bob/travel%20trailer/Bobs%20Public%20viewing%20album/The previous owner did a real good job hiding all the damage you couldn't see it from the ground or inside the trailer. Simply put the last four feet are going to have to be rebuilt. The cost won't be to bad it will be time more than material the top piece of sheet metal will need to be replaced the ceiling inside and some of the wall board the structure repair costs will be minimal. More labor than anything else. I hope to have all the demo done this weekend and be in the rebuild stage. It looks bad but I dont think it will be to bad to repair after all it is sticks and tin :) !