Hi camping4me, let me get this straight.......you are going to work on your teardrop somewhere next to your favorite fishing hole, "if the fish aren't biting'? Now that is a novel concept. Good luck.
I wonder if you could elaborate on what you mean by a "fiberglass shell". This is an interesting concept, and wonder if you plan to fiberglass the exterior, or use the fiberglass shell, as a structural component. What ever you decide, do take plenty of pics, post em and we will all enjoy following the progress of your build. Ask questions and someone will surely answer, after all most of us have been where you are right now.

Roly ~~