That is an extremely good deal for that fastback. It's hard to find a clean body fastback for under 30 that is "race worthy".
You are very correct. Someone stole it at $18K (the transfer price that I heard).
The wheels are not correct. They are larger than vintage. Vintage is 15".
I had more than $25K in my car when I started (18 years ago). A vintage racing engine is more expensive. Vintage racing may seem simple, but it is not. You will be attacked at every race track. It is fun, and I don't regret anything.
Here:
My next race will be the 2015 HSR Walter Mitty.
http://www.hsrrace.com/2015/Mitty/2015MittyEventPage.html
We will show those BMW's the fast way around Road Atlanta. :-D