Well, I guess there's one way to find out for certain.....and a Ruf 6 speed box seems like a lot of effort for a fake!
I'll let you know in due course.....and Keith, as a fellow 930 owner, if you can rack your brains as to where you've come across it before I'd appreciate it. Yourself and your mates seem to have an encyclopaedic knowledge of the classified ads.
One other thing; sticking to my normal remit, I do know a bit about the blue Ruf turbo on eBay. Virtually certain that it isn't, but they are nice wheels - almost made up for the blue Hammerited luggage compartment interior!
It's been doing the trade rounds since the beginning of the year. Last time I saw it in the metal ( 6-8 weeks ago) it needed a new exhaust system. I believe it was built for trackdays by Junction 8 cars near Silverstone, presumably after it was written off.
Rgds
John