The last time John was here in the states, we sat down and went through his designs one by one and discussed what would be the right amount of epoxy and glass for each one. He pointed out that some folks might want to use other glues for some parts and that others would want to use more epoxy and cloth on the bottoms and other areas. So this is a starting point - a suggested box of resin and glass, if you will. Suffice it to say a boat can be built with one of these kits.