I've been reading these posts about boat projects. It has got me thinking maybe I can do this to my boat. I have a 15 ft. Gregor aluminum v-hull. Putting a casting deck from the middle bench to the front bench sounds pretty cool. What kind of wood would I use. Should I use plywood. What do I use to treat it or watreproof it.Also does any one know where I can purchase floation for the back, middle, and front benches. Thanks in advance for any help.