Help identify this boat. Updated bigger pictures

[serrano4657]

This is a fiberglass sailboat and is about 13' long, 5' beam. The registraition for trailer says 1959. It has a swing keel that is some kind of metal. The mast and boom are a light weight wood. 2 people can lift the boat a little ways. Second picture fiberglass boat with wood mast, boom and tiller. Third picture is of boat looking toward bow. Notice the seats and centerboard. Last picture is stern with molded seat and built in tray
The rudder is wood too. The sails are in poor shape, they have picture of saturn I believe on the mainsail. I don't know if the sails are original.
As you can see, the boat has a very unusal sitting design. There are no markings or numbers on the hull at all. The boat has seats more like a car as in facing forward instead of sideways. There is no hin number on hull or paperwork. I have looked for years and have never found another boat like this. Any help would be nice.
Scott

 

[airshot]

Just a shot in the dark here, but many years back and yes I do mean many...when I was a young lad my folks had a small cabin along the Portage river. Numerous boats operated on that river abd I worked at the local marina. We had an odd looking boat come in, similiar to yours called a "Bock" boat. Fiberglass and of similiar color and shape. It also had a wood attachment to add a small OB motor like yours in the pic. Only saw that one but have heard the "Bock" name used on a couple ocassions. Again just a guess here, hope it gives you a direction.