Thanks, guys.
Denny, the flip up hatch will be fiberglass. I considered modifying the piece I cut out, but I think it will be less effort to fabricate one from scratch.
I got a little more done. Nothing special, but good to get it out of the way. The deck on both sides of the engine cutout was cantilevered about a foot out from the stringers, so I laminated in some plywood supports to take the flex out of them:
And the deck over the fuel tank compartment spans about 5' between the stringers. Even though the deck is sound, you could feel a little deflection under foot when walking on it. I figured a couple supports there would be cheap insurance. You can see in the next pic where they laminated in a stiffener under the deck to compensate for the long span, but then they cut a couple notches in it so the fuel tank fittings would clear. Kinda defeats the purpose of the stiffener.
Port:
Starboard:
I've also started on my rigging tubes. The 1" PVC conduit in the last pic runs from the battery box to the engine compartment. It will carry the battery cables and bilge pump wiring.
I'll post more as progress continues.
Dave