here's what I used:
US Compsites:
4:1 Epoxy - I prefer the faster set up - especially for up here in colder weather
http://shopmaninc.com/epoxy.html
Cloth - I used 26oz to reinforce from the inside and 18oz to wrap the outside
http://shopmaninc.com/cloth.html
I used my circular saw to make two cuts - removing 2"s from back - leaving the transom in place... then used my dremmel with a cutting wheel to trim the transom plates off. I used Lord Panel fusor EZ101 to glue the transom plates back to the new cut location. But while the back was off I sanded the inside really good to remove the residue from the old foam.
I used Marine Filler (ebay) to go over the cloth - once I sanded - in order to smooth and feather everything out. sanded that smooth, then went over that with a thin coat of the same epoxy/hardener (from US Comp) to seal the marine filler.
Use the same cloth and epoxy to put the tray back together... I wedge blocks of wood in the tray to keep it lined up (as it will flex inward and not be even) - then I fill the gas with panel fusor - once that hardens then I use the fiberglass cloth to strengthen it...
Hope that helps...
Pump is in along with ride plate. Urethane motor mounts are in and shaft is being pressed into my new urethane mid housing... once I get that back I can drop the motor in and shim it. Then re-run new cooling lines. My pole is being painted early this week - should have the ski finished by the weekend.