I am planning to use System Three Epoxy to glass my Georgian Bay kayak. I am thinking of using the clear coat epoxy to put down a sealer coat and then use regular system three epoxy with #2 hardner for the rest. Is this a good idea, or should I use the same epoxy for the whole project? I have never worked with epoxy before, so any tips or advice would be greatly appreciated. What is the best weight cloth to use?