Looking for some flooring advice on this welded aluminum jet boat, it had plywood covered in vinyl that rotted away. looking for something i will never have to replace. The ribs are 2 feet on center planning on using total boat 2lb density foam under floor. Can I get away with 1/16 diamond plate? I'll probably weld in some angle under the two post seats I plan on installing. Thinking about bolting down the diamond plate for future maintenance. How well does total boats closed cell foam hold up? Can I use 2lb first half then 6lb on top?