I am doing something similar to you, but i didnt lift the deck off. I took the toe rails, and all the fittings off. The deck is still screwed to the hull, by the screws that were under the toe rails, i had to tighten all of those up. I have been cleaning away the old sealant (which is now like cardboard) from where the toe rails were, and getting as much of it out of between the hull and deck as i can. I am then going to grind the fiberglass, and glass the hull deck joint, with two inch tape, and resin. I am then going to replace the toe rails, with butyl tape under them, drill through the toe rails into the hull and put in machine screws, washers and lock washers, which i am going to seal each one, with plenty of sealant. I am toying with the idea, of getting oversize windows cut, putting them on the outside of the cabin, and bolting them on, with a rubber gasket inbetween the window and cabin, and again, sealing all the bolts.
I think, if i do all this, for the first time in my life, i will have a boat, that i dont have to take a shower every time i am in my bunk, if it dosent work, its back to the gore tex bivy bag.
I am quite impressed that you took the deck off. I have had everything else off of a sailboat, but i have never removed the deck from one.
