I suggest a non traditional approach. Finish the boat into a clean useable condition and use it. It will never be Bristol but can be nice with a simple approach.
By simple I mean scrub all the interior with anit mold stuff then prim with alcohol based shellac based primer. NOT KILLS. The shellac will seal in the mold and smell anywhere it is properly applied. Then paint everything off white. Paint or refinish some molding pieces as you can to make it look pretty. IMO those boats had too much varnished wood to begin with.
By simple I mean scrub all the interior with anit mold stuff then prim with alcohol based shellac based primer. NOT KILLS. The shellac will seal in the mold and smell anywhere it is properly applied. Then paint everything off white. Paint or refinish some molding pieces as you can to make it look pretty. IMO those boats had too much varnished wood to begin with.