So we finally found the wood we are using. It's Brazilian Redwood. After it is stained it will be a lighter color than cherry. The wood has a 30 year shelf life and more if it is protected correctly. We are putting a 1/8 inch gap inbetween the boards and building the bottom like a deck. This will allow the boat to flex some and not stress the wood as much. We are buying carpet and making runners. That way when we arent using the boat we can store the carpet in a dry place. I will try to take pictures when we are done.
So the brazilian redwood is gone from the store adn it costs a fortune to order it. so we decided to weld on aluminum sheets and just glue carpet to them. then we wont ever have ot worry about it...when teh carpet goes bad just scrap it off and replace it. also if it gets dented or messed up we can reapir it easily.
Just remember you may have to weld more support for the floor if you do that. Have you looked hard online for wood? I was gunna build a pontoon and there were like 4 or 5 great choices to choose from out there, lol want to say it was like they were soaked in somthing like formaldehyde for wood.