I replaced my bracket with plywood, but I placed two wedge shaped pieces between the outboard pad and the face of the well. This has altered the angle of dangle of the outboard which, even at its lowest tilt setting, was sending a bit of a rooster tail out behind the boat. I like to think that more of the energy is now converted into propulsion, and less into a display fountain.
A previous owner had fabricated a very well engineered stainless steel cap to the o/b pad, which I have retained, although it chips paint off the drive leg!
I backed up the fibreglass behind the bracket bolts, but access is certainly not easy. I can get into the "cave" in the stbd quarter, but getting out again is increasingly challenging.