How about instead of using wood boards..You make your own "boards" out of fiberglass.Lay the glass out on a smooth flat surface covered with wax paper or pva(a parting compound) trim to size.Use aluminum angle for the frame.Through bolt the glass to that. Maybe a little sealer between the glass-alum,paint. Just a idea I've been kicking around.
Have Fun
Mike
See you at the RTI
Mystere 6.0,2112 + Chute