based on the pictures and the amount of water present I would say that the bulk hear has rotted out. The deck is not there to take the load from the shroud. So for me it would mean dropping the mast removing the chain plates replacing or repairing the bulk head. Repair fiberglass damage then replace chain plates and seal well. If you just try to fix the fiberglass it will keep happening as the bolts continue to eat there way through the bulk head.