what type of core
 

the exspence is a concern but also quality. so is it foam core or marine ply. and if some out there has some material for sale let me know .

penske board - excellent choice for a core material...

For what purpose and what value if value is at the top or No expense bounds?$
 

We need more info or needs and wants

need to do the transom and deck .

i have been looking to buy material and found a few places but like to know if you guys can tell me a place to get penski or cooza

transom and deck - penske board is an excellent choice...

where are you located ?

Penske or Plywood for Transom

Corecell and ply for deck.