I suggest taking boat off trailer... glass for inside and gel coat from outside, use real epoxy resin, such as
http://www.jamestowndistributors.com...05+Epoxy+Resin.
To get boat off trailer is a bit tricky but do able...this thread should help with that...
http://www.mastercraft.com/teamtalk/...t=14879&page=2 - here's an MC on styrofoam blocks.
another thread..
http://www.mastercraft.com/teamtalk/...=22930&page=14
please post process of removing boat from trailer.
trickskier and cantrepeat would be able to tell you how to get boat off trailer safely...