TOPIC: 1960s? 15ft Renken

Rescued this thing from some hunting land of a friend. Last registered 1990 here. Looks like its been upside down on a tire and a few cushions ever since.
We're not sure on a year or model.I can only guess the 60s? Other than what the library has, any information on this boat would be greatly appreciated.
After reading how to make a new windshield on here. That's one worry out of the way. This is on the back burner but its nice to research early.

Appears to have most of the trim. Big odd shaped light up front, all intact. All the cleats.
Windshield and all mounting hardware are missing, and no luck in the barn we found it next to.
Only the one plastic pedastal seat (outside of first pic) for interior.
One bad thing, the RenKen badge on the right is busted and half missing, it was plastic(so later 60s or maybe 70s)
Upon further inspection/walking in it, the thin floor layering/cover gave in. Pulled up a section and found squirrel/rat nest and probable rotted runners and supports. It is currently flipped back over and waiting further time. Money, and patience.