Ok, so i have a 1989 spectrum 1700 fish n ski. All the wood in the interior is rotted and i'm already in the process of gutting out the inside. I was thinking about putting in a aluminum floor so i don't ever have to worry about the floor getting soft. My question is what would be a good type of aluminum to use and thickness? Also anyone know about how much it would cost? Also what would be a sealer to put down in the inside bottom to seal up any leaky rivits?