[abisel]

Celette is very much still in business.

http://www.celette.com/

And they make Porsche fixtures for...

http://www.celette-na.com/porsche.php

I bought a set of fixtures for my older Model 7 bench a few years ago.

Maybe you can find something here:
http://www.autobodyonline.com/products/usedEquip/equipsearch.cfm?type=FOR%20SALE&catagory=Body%20Equipment

I think you will find that Snap-On acquired Blackhawk. Read the fine print at the bottom of Blackhawk's web site.
http://www.blackhawkcr.com/