Steve,
Tough luck on your hull. As for a repair, it is possible to do, but definitely not worth it unless you can do it yourself. Even then, it is still probably not worth it.
To restore the necessary integrity to the repair site (without seeing a photo first), I`d say you only have one option and that is to remove/cut the entire hull cap away from the rest of the hull in order to make your repair. Doing this properly and coping with the issue of those pylons coming up from the hull could make this a bugger of a job - even for a pro.
Dave