Yeah, links didn't paste right. Here's a link to the sale page:
http://www.dreamsonwheels.com/index.php?page=1974-porsche-911-carrera-rs-clone-2-8-mfi
That's got to be the clunkiest website I've visited since the days when Porsche still made air-cooled 911s!
I might be missing something big (wouldn't be the first time!), but that looks like a garden variety 2.7 74 911S. While it looks to be in really nice condition, $40K is beyond unreasonable. Even half that would be overpriced, IMO, even with the recent engine rebuild.