Update 10/9/06:
Eight months after ordering and receiving my Ruf bumpers from
Peter at Rennspeed I finally have them both painted and installed on my SC.
I added my own unique touches to this install - using a 964 front lip instead of 930 fender welting. Also I used Lite-N-Boltz for rear license plate lamps instead of the Toyota Corolla looking rear lamp housings. They work well enough:
I still need to fine tune the rear bumper fitment and clean up the front turn signal mounts...but...for now I'm done.

-Scott