Another 20 resurrection

[TPG]

So have a sad neglected 1971 20 super fisherman sitting in my driveway.
The current plan:

Onto a dolly and into the garage

Transom job
from the outside, due to wanting to keep the storage and livewell
6 inch lip, the wood is REALLY gone so I don't have any fears of having issues removing it all
epoxy and marine plywood

Deck job
gonna raise the deck 2 inches and make the old scuppers go away and plumb through the transom.
foam core, could use some advice on what thickness to use, most likely polyester resin instead of epoxy due to amount and cost.