Welcome to the forum!
Your instincts are good, this is eminently repairable. And, yes, you need to think about the loads.
My suggestion would be that you research the older threads in this forum first. There have been several discussions of just this kind of damage and in various generations of the DS. That should allow you to come back here with your questions suitably narrowed down.
The last guy who came through here with this problem, we sent to this thread:
http://www.daysailer.org/forum/viewtopic.php?f=11&t=183While it's probably not the only one, it's a good start.