hi,
there's not much point in using the resin if you dont use glass cloth.
a pine board around 1/2 - 3/4 inch thick should be strong enough without reinforcement.
paint or varnish will be alot less hassle.
-bill
if you have more questions take a peek at:
http://www.zeroprestige.org/
http://groups.yahoo.com/group/boardbuilding/