[RMcNeal]

Hey, Dave. Here's my $.02 worth. I believe the flooring is actually 15/32" plywood, so basically 1/2 inch. I would only try to epoxy the outside side of the plywood, and leave any interior surface so that any moisture would not become trapped between the plywood laminations. As for the replacement molding/flashing, check with Trekwood.com and see if they list what should be there. You can enter the year and model number to help narrow down your choices. As far as wrapping the flooring, I'm not sure I understand. Do you mean wrap on the under side of the slide? If so, you could use skrim tape or something similar. Even Tyvek house wrap would work as a moisture barrier as long as it is covered when complete.