wow good job mate. this is the same as the ls1, ls2 with T56 gearbox setup in all post 2000 model commodores. i have had ALOT of experience replacing clutches in those, so im familiar with these slaves.
have you driven this particular setup yet? any notice in the difference of the pedal? ie take up point? what master cylinder did you use (is the stock item ok?)
Did you mill the adaptor plate yourself?