JAR is spot on.
I also have the Seine GSK on my car, the factory short shift kit, as well as the Wevo rear coupler. I love how my car shifts.
Keep researching. Buy some good literature. Study study study. You'll get it.
Ed has couplers. I don't know if he has everything. But - you are posting this at PELICAN PARTS. You can get it from the board's owner.
http://www.pelicanparts.com/catalog/shopcart/SubCat/911M-Transmission-Clutch.htm
Ken