another 915 clutch act. puzzle

[Turbo Haraune2]

This is the situ: Subaru ej20, 200mm t-1 clutch (kep stg3), 915 pull type casing,subaru master and slave hydraulic parts,t1 or subaru starter.

How do i get this setup to work?
I know i need a 200mm disc with the porsche splines.(since t-1 dont fit)

What T-O bearing to use?
What T-O activating arm to use?
What starter? (subaru have built in end bearing)(T-1 not?)

All the parts are sitting in the garage waiting to be assembled, or at least trial and error assyed.

I dont want to invent the wheel again, so please give me your suggestions.