The EFI is documented on the 911techforum here is the link:
http://forums.pelicanparts.com/showthread.php?threadid=158817
I intend to update that thread when I find some time.
In a nutshell the EFI uses some aluminum CIS blocks (powerhouse) modified to accept efi injectors and a rail made from stock fuel rail.
The ECU is a DTA P8, others on this group have had good success with it. Although I haven't turned my key yet!
The turbo is a K27-7200 with the stock headers for now. Other mods are SC cams and 3.4L P&C's and a Patrick Lightweight Flywheel.
Here is a shot of the rear as requested. I think I took this when trying to figure out how to mount the coils (I used a Bosch VW coil pack).