I have a 1997 Moomba Boomerang with a bent mount crossbar in the hull and the bolts broken in the foot mount. Does anyone know how to replace these bolts which are sticking up out of a metal plate glassed in the bottom of the hull? I thought they might be accessible if I remove the tracking fin on the bottom of the boat but I want to be sure. Also how big is the risk removing the mounting bolts that go in the stringers so I can remove the mounting bracket and replace it? I am concerned that the old wood may not allow the mounting screws to torque again.