Re: Trying another tack... Looking for the right boat near Vancouver, BC.
If the deck outside is the correct shape I don't think you can do much below except allow for the strange shape that is there - except for removing the beam and the bottom layer of the deck under the mast and re-glassing it in the proper curve before replacing the beam.
I could come over in a few weeks if you want. There are a few electrical things to finish and once you attach the battery box the wiring can be improved in that area. I'm busy for a while with several boats - one pretty extensive.
Living aboard in Victoria Harbour