: Others have had good success using hot melt glue hold the strips together.
: Note that it wont be as strong, but the fiberglass should add more than
: enough strength to the hatch covers.

Hey--hot glue is a great idea. Lay the strips in place, hot glue over them to hold their shape--even hot glue a batten or two for stiffness.

Flip the hatch over and glass the inside. Peel the glue off the top, sand and glass.

Shawn