Tenney..I'll have to register on that forum and talk to Eric Shiffer, as it seems he is a wealth of information on these cars!
Back to the Ruggirello Mustang II...I had searched for this car for years and finally located it in a storage lot in New Jersey. I saw it once before at Gainesville Raceway here in Florida for sale in 1995, but it got away not to be seen again.
It appears it left Detroit for Florida back in 1981, then left Florida for Indiana around 1995, then New Jersey in 1997. However, I have not spoken to anyone who actually "owned" it or was close to someone who did yet.
I got the car in January 2010 and have been restoring it since. Currently doing paint/body work which should finish next month. I spent months just getting the car safe to start/run/drive again after many years of neglect and poorly done modifications to the rear suspension.
This is how the car looked when I found it. Photo taken in the NJ storage lot. I'm sure hoping Mr. Rifkin might be able to shed some light on it.