How much damage are you looking at? As long as you're handy there's nothing that can't be fixed in a trailer. Once I started tearing our trailer apart I was surprised at what was holding it together for all those years. 2x2's and staples was really it and some of those 2x2's we're even ripped down smaller.
Good luck with your project. There's a wealth of knowledge on this forum if you have any questions.