I saw the boat in regular use for years, and as noted it was re-powered somewhere around 2010. The longest it could have been sitting where it is now is about 2 years. It would be a project, no doubt, but maybe it could be restored. I'd be concerned if it's been filling up with snow, ice, and rain, and then freezing and thawing through a few winters, though!
I've always been puzzled by the foredeck box. Anchor storage? It looks like that might be a slot on the right front of the box for a line? Appears to have a latch for the lid in the center. Your guess is as good as mine. Maybe Chromer (the OP) or his dad have a clue.