Replace floor with??

[Huron Blue]

So after I get the plywood peeled off I mix some epoxy resin and pour it in the shell then lay the ply in that? Is that right? Next I would need to resin the top WITH cloth or no? What would be good to clean the shell with after I get the ply scrapped out so the new resin and ply stick? This is the tank cover / seat support so it gets a LOT of use sure don't want the ply coming loose. Thanks!