There is a pretty good collection of pictures on ProvaMo for 2670 -
Looks like a nice, clean stock car, my only reservation might be based on the pictures of a fuel tank/fuel cell over the ZF... The pix were taken in 2008, so maybe it's already been put back to stock...
Nevertheless, to me, that's an easy (albeit pricey) fix to restore the fuel tank configuration to original (or better yet - to the post-72 (with the filler hole in the gill)).
Nice car. Good luck on the sale.
PS.. What's funny is that after relooking at the pictures on ProvaMo, it looks like the car is already equipped with a post '72 gill on the driver's side that has the fuel filler door. So all you would need is a tank and a filler hose, and you will be living the dream!
I love ProvaMo!