I haven't decided to switch to power brakes yet, but if I do I've prepared the linkage and all fittings. About 2.5 years ago I bought a LS3 from a 2012 Camaro SS and got half the car. Among other things a complete brake system so I already had the MC and booster.
I had to get rid of the reservoir and do a remote mount due to my cooling duct so I made a new aluminium mount that fits where the old reservoir was and used banjo fittings to get it as low as possible. Also made new brake tube fittings, however I don't know if I'll use them or the -3AN/M12x1.5 fittings.
The stock Camaro brake pedal has a ratio of 3.8:1 and the Tilton has about 5:1 so I used the slave lever to get to approximatly 3.8:1. Also lasercut a couple of extra levers if I don't get it right the first time. I made all bushings with POM (acetal) plastic round bar and will use sholder bolts on all 4 places. I'll make the last lever from the pedal to the slave lever after I have mounted it.
When it comes to vaccuum I choose the Hella UP30 which is designed to provide the nessessary vaccuum independant of engine (diesel,gasoline turbo or electric). I have tested the system and it works perfect.