I sold my old 14 ft and bought a Lund 16ft that I'm looking at redoing. Had it out a couple of times last year and had to run the bilge pump so I think there's some bad rivets. I looked underneath it and the PO tried to silicone the ribs. So my question is can I gluvit the bottom without flipping it over? To heavy! Has anybody done this? Don't want to tear out the floor this year if I don't have to. Any advice would be great.