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The problem is not that the floor is thin but that there is no wood in the area you are screwing down the console. Take a look at the 13 footer Wood Locating Diagrams. What you really need is something under the deck like a molly bolt that will flair. The issue is then going to be rust.

If you glass some structure like wood under the deck you will have the issue of repairing the non-skid. I think I would glass 2 strips of a good material like Coosa Composite to the hull for something to screw into. This way if you want to pull your console later it will come out easier.