here is the thing about boats.
many are one of a kind, doesn't make them valuable.
over the last 90 years of fiberglass boats, about 100,000 companies have come and gone... most only making 1 or 2 boats.of the 100,000, about 75% of them disappeared before the internet came around.
if you have a location of the company, you may have to scour local libraries for some information.