What if I line the bottom with plastic wrap, So it made the foam removable and drilled small holes in the plastic after the Foam cured, And then drilled some drain holes that way the foam is removable the floor is removable and at the end of every boating season I can remove the foam keep it dry and keep the bottom of my boat Dry…

Aluminum for weight reasons.

I am planning on making the floor removable as it will be aluminum sheets. I will check out some videos any other advice would be greatly appreciated as I am a new to the boating scene.