Scarebird Conversion

... and the back of the rotors machined to fit the registry on the stock hubs/studs
First I heard of this and don't recall seeing it on the Scarebird site. That would be much harder than drilling the SBP holes, and having to do so for every new rotor would be a killer. Was yours a special configuration that required such machining?

Otherwise, a Scarebird setup could be much less than $350 if you source the Chevy & Toyota parts yourself (ebay, rockauto, craigslist). I have no issue w/ the parts. Does anybody here think that GM or Chrysler makes brake calipers and rotors? What should matter is "can I get them in the future?".