Possibly not quite a 911 part but here it is......
Twinmaster serviced in 2007 by Martin Jubb (Haldaman) and used in two rallies since.
Two cables 32 inches (81cms) and 39 inches (99cms)
Mounting bracket
T-piece to suit porsche
Gears 134 through 138
Clips & drive pin
Asking $1750 o.b.o plus shipping
Would also consider part trade of 7 x 15 fuchs (prefer anodised petals or RSR finish)
Happy to take more photos if needed
Cheers Cam