Jeremy, where is the crack in your keel that is leaking water? Bristol hulls were made in two molds then clamped together and the inside and outside tabbed with cloth and resin, faired and gelcoated. If the crack is on the bottom in the center than you may want to do more extensive glass work to ensure structural integrity.
The cracks were about 8-10" or so above the bottom of the keel. I've since ground both sides down all the way to the concrete. One side has been filled, glassed, ground, and it's ready for gel coat tomorrow. The other side still has a bit of moisture towards the bottom. It should be dry enough to glass tomorrow.
The deck repair is still going VERY slowly though.