I have a Beneteau 39 Oceanis that has been on the bottom in 3 feet of water for 14 days. The keel is separated (as in ripped off) from the boat and it has seawater inside. We plan to raise the vessel by patching the holes in the hull (any comments on the best way to do this?) and pumping the water out. There is a crack in the starboard side of the hull. The mast is intact - Do we need to drop the mast before floating or does the vessel still have righting moment to stay up? The engine issues are large as it is submerged. What is the best way to save an engine once it is out of seawater?