I have a 1975 Ericson 32 and just had a survey for insurance. There is a soft spot under the deck around the rear port stay. I read on line about fixing it and decided to do the repair from inside to save the nonskid pattern on the deck. Well we cut a hole in the ceiling of the cabin under the area and I now have no idea what I am looking at. There is a thin layer of fiberglass about an inch above the ceiling. Cutting a hole through it I found the wet core material. The problem is there is what appears to be epoxy on the underside of the thin layer of fiberglass that fills the area between the ceiling and the fiberglass, but it is only in a couple of spots. I am wondering if someone tried to do a repair in the past by injecting epoxy from the under side not knowing there was another layer of fiberglass below the deck. I may be in over my head again on this repair, but that's not new and I usually find a way to get through it with some help from my friends. The easy way would have been to go through the deck but I wanted to keep the outside looking good. The marina here where I am at has not been able to get me an estimate for over two weeks and the insurance company has grounded me until I get this fixed. Do I just cut out everything below the deck and replace it with plywood and epoxy, then fix the hole in the cabin? There is about a 5/8" space between the thin layer of fiberglass and the deck and the filler in there is wet and rotted. Any help and guidance would be appreciated and I would like to sail again before the summer is over. Other things I had to fix replace valves with ball valves, GFI outlets, relocate AC shutoff/fuse box from under the sink, etc. Thanks for any help or input.