At the risk of offending those of you who counselled against cutting into the hull, I've gone ahead and done it. Clean cut, should be easy to reassemble. It gave me great access to the badly torn up bottom. Ground off anything loose, pushed pieces back into place, laid down one layer of saturated 5 oz S glass, then bog w/ hi density filler, followed by a 4" x 18" piece of 1/2" foam that I'd previously vacuum bagged with the same glass to both sides of. Wax paper on the outside of the hull and atop the foam board, then a piece of 3/4" plywood outside of both, and used drywall screws to provide the clamping pressure to suck it all up. Worked very well, The bottom is almost back into it's orginal plane, and it's all very solid. Tonight I'll cut the excess out of the daggerbd opening and bog the lower 1/2 of the well back into place, leaving the repair of the middle of the well for the following day.
