DDK - Die Deutschen Klassiker

I am going to use a push type clutch in my 914 box to 911 engine and have the parts to make the conversion (new arm and pivot) but wondered if anyone has done this before using the release bearings that fits integral to the bellhousing such as those from Tilton or Quartermaster.

Ooops I think I should have posted this in the tech advice area please can it be moved