I am trying to find the original owner of my car - a 1985 911 Carrera with M491 Turbo look option in a PTS color.

I know the following:

The car was sold new by Stoddard Imported Cars in Willoughby, OH to a German guy called Helmut (last name unknown), who was then living in Medina, OH.
Helmut was apparently a Porsche collector and the car was an addition to his collection.
He was possibly an investment banker.
At some point he moved to somewhere in Florida.

Does that ring any bells with anyone?

Thanks

Dave