I am a member of a 4x4 site and was asking some questions about pulling trailers with jeeps (We have a newly acquired Jeep LJ Wrangler) and I was offered a teardrop project for a seemingly good price.
The builder readily admits he built it under a time crunch to use on a trip of his own, in 2011. He really over built the frame, axles, wheels, etc. for use offroad. The cabin is made of plywood floor and sides with masonite for the covering. He put it together and painted it with epoxy paint. He used it on his trip and then it sounds like it just sat around in his yard.
Here's what it looked like new:






Here's what it looks like now:




http://i622.photobucket.com/albums/tt303/oz97tj/Teardrop%20build%202011/20140601_182043_zpsqs9psk1o.jpg






So the biggest issue is the masonite separating from the plywood. He said the roof vent was partially open and that could have caused some of the water coming in. Or possibly the huge cracks between the masonite / plywood. Also the masonite covering the galley area has a couple holes in it from a mishap with the chunks of prop wood he was using.
Assuming that the masonite or the plywood isn't too far gone, would it make sense to skin over top of it with aluminum and silicone/screw it down or would it be better to remove the existing masonite and replace?
Any glaring issues that I'm not seeing? The inside plywood definitely needs to be finished to help protect it against moisture. I would also like to make some improvements as well, like cupboards, 12v outlets, etc. but my main concern is making it water tight/structurally sound first.
Any advice is completely welcomed!
THANK YOU!