Please do put up the Pics. You're right Larson did make some, but I'm not sure how many.
I saw one posted on Craigslist a few years back in St. Cloud, or Sartell, Clearwater I don't recall exactly. I spoke to the Guy, and He boasted about how he had redone the Boat. I didn't like what He had done, or what He had used. I would have rather gotten the Boat from Him in lousy shape, and restored it myself. He wanted way too much money considering what had been done, and in my opinion would have needed to be totally redone again properly.
The one I am thinking back on I remember to be a square stern 10-12' Boat with a pointed bow, decked over with a good size cockpit opening. I know of another one in the Brainerd area, but I've not seen that one. Just spoke to the Man who owns it.
I can tell ya one thing for sure 50 year old fiberglass Boats usually need some serious repairs. There's a lot of patches, and interesting repairs to find on close inspection. I'm always skeptical of those things, and what guys tell ya they already fixed themselves.
Good luck, just don't pay a lot unless the thing is in immaculate shape.
my .02 cents.