Pete,

Divinycell 3/8" Plain H-60 on the main hull and H-80 on the ama's. Here is a good link for it: http://www.merrittsupply.com/Divinycell-C720.aspx
If you don't buy from them at least you can see what product line the foam comes in. I use west system with 407 for the bog. Just use regular wood working tools, saws, ect...

Mike