There is a simple solution and I have done it twice and the boats are still sailing with no failures. I installed 2, 5 inch ports a few inches behind the front crossbar and then used the same hole saw and cut a hole in the bulkhead to allow me access to the bolts in front of the crossbar. I then removed the bolts and drilled all the way through. I then put in new bolts that were long enough to go all the way through with enough length for a nylon locking nut and washer. I actually used the square washers (I had extras) that are used to help hold the ss strap down. I also cleaned up the area and used Marine Tex before I tightened everything. I also installed beam inserts to strengthen the front crossbar, if you have a NA they will already be there. The first boat that I repaired 8 years ago is still sailing in the Atlantic Ocean with no problems.