Well the tank is finally out. I had to cut one piece of 3/4" plywood (will need to replace it) to have room to slide the tank back and up after cutting about 1/2" off each side of the deck flange, (still plenty of room to reinstall the deck plate). I had to cut about 2 feet off of the tank to be able to slide it back far enough to lift it out with a come-a-long. I really did not want to remove the 225 Honda. I had it hanging in the air with about 5 gallons of water in the tank and I found a water bubble droplet seeping out of a small corrosion area. Not much, but enough to make a stink. The inside of the tank was a mess, lots of junk had accumulated. The tank was 98X28X10 w/4 baffles (115 gal). SEACRAFT did a lousy job installing the tank. No neoprene on the bottom, but large splotches of some type of foam/rubber material which held water of course and the sides were foamed in and had some corrosion, the tank had been painted with a gray paint of some sorts. It probably would have been impossible to do a through cleaning of the inside of the tank, so replacement time was in order even w/o the gas leak.
