We also did this job on our 11.0 several years ago. Removed all the chainplates, one at a time. Dug out the wet core with bent hangers and a vacuum hose modified to suck out most of the wet bits remaining. Left it open when we reached mostly dry core, to really dry out for a week. We made a plug, duplicating the chainplate, and covered it in a thin coating of silicone, with a flat "platform" to fit tightly on the underside of the deck to prevent thickened epoxy from running out. We began gradually filling the void through one of the two screw holes that secures the small deck plate to the deck. We did this gradually to avoid excessive heat buildup. We also experimented with using the epoxy putty stick that can be mixed by hand, and then pushed into place into the void. This is effective if you can be certain that you won't leave any voids, and it eliminates the need for making the wooden plug. By the way, the wooden plug just taps out when the epoxy cures, if you have applied the silicone evenly to the wood surfaces. I sadly do not have any photos of the process. We did find in removing some of the long bolts, that a few were actually bent and we found replacements at Fastenal. Hope this helps. This year I am replacing the bedding under the plates with the butyl tape.
