Don't know if you've heard back from Luders33, but yes, the deck is bolted to the hull first, then the toerail is bolted through both. You should be able to see this by looking in the galley
cabinets or sticking your head
down in the cockpit
lockers or even the chain locker and lining up the bungs. When the PO redid mine, some of the new toerail bolts hit existing deck bolts, causing them to leak.
I haven't had mine off yet, except for a small section near the bow, but it does look as though they used epoxy
to bond the deck to the hull in addition to the bolts, with the spacing varying between 8-12 inches.
I'm thinking of redoing mine this summer too, but need to get out of NYC
first -- too expensive to do much of anything here. Please be sure to post your results, and photos once you're done.