Also, lots of people here and on the
Scamp forum have done major floor repairs and were very helpful a few years ago when I tackled mine. It is a dirty job and it feels like you are going to ruin the trailer half the time, but it is not technically difficult. And you will learn a lot about
fiberglass and resin.
Post a better description of how bad the wood is and you may get more advice on how to handle it.
Side note: most
scamp floor rot comes from interior
leaks. You have to fix the
leaks or your new floor is doomed.