if anyone cares of what one could get from stock parts - I told my mechanic to get maximum possible camber in rear axle - it is completely stock.
He was able to push it to -2.1 degrees, but had to revert it back to -1.9 to get toe 0.10 on both sides.

Also, it may be my car issue but in front axle caster with 0 toe and -2.3 degrees camber is 8.7 left and 8.3 right - and additional 2 parts $350 or so each are required in case if adjustable caster would be required. I will live with what I got for now, should be fine but still surprised why caster differs by so much. As it is not adjustable - nothing can be changed there. With stock LCAs at camber -0.9 caster was 7.5 left and 7.3 right.

So far GT3 LCAs seem to rule big time. Steering is simply awesome now, like day and night from what it was.

Quite strange thing - it took 2 7mm shims on left to get this camber and only 8mm on right side. Is it typical with adjustable LCAs to have that much difference between one side to another? Car does not have records of ant frame injuries... Hmm. May be it is related to fact that alignment getting done with driver weight simulation in driver seat. not sure.