Defoaming superjet questions

Alright, I know I need to defoam my superjet. I have read most of the threads on defoaming, but still have a few questions, before I start cutting into my ski. My first question is, can I just cut the whole tray out in one piece and then fiberglass it all back in after I put the new foam in? I would also add a few extra layers of glass to beef it up. My Second question is, can I just use the pink sheet foam that doesn't absorb water and not have to use any expandable foam that does absorb water? Or do I need to use some expandable foam to fill in the gaps and to add more structural rigidity. I also plan on adding drain plugs.
 

Quinc

Buy a Superjet
Location
California
Use the pink foam. I cut out my tray with the same thought of reusing it, but it warped and was unusable. lots of info in the build threads.
 
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