i'm looking into making custom subs out of fiberglass also. la de da de da... you know how it goes. so i went to hifibuys down the street and asked them what they used to do glass their porsche. check it out here
http://www.hifibuysnashville.com/mobile.php
they told me to go so
www.selectproducts.com and get the glass and resin and mold cloth and rings there. they told me this cause they said that resin is supposed to be flipped upside down every 30 days or it will seditate at the bottom. and their mold cloth is Really thick and strectchable. so if you wanna save yourself some aches and pains, get the speaker rings, mold cloth, and resin n hardener there. they specialize in it unlike home depot who doesn't even know where fiberslass is located at in the store.
i'm also looking for a review on the 12volt resource.com's resource cd and is it really worth it. thanks.