Scratch-build rotors and calipers

Hello all! I'm working on my 1/12 Camaro. I'm going for a pro-touring look, with some large 5 spoke gunmetal wheels, and I wish to add disc brakes. I found a GREAT tutorial for making the rotors (http://www.italianhorses.net/Tutorials/BrakeRotors/brakes.htm). But now...the quest for calipers...before I attempt to scratch-build them out of styrene, does anyone know of a solution (either molded, pre-fab'd or something I can work with to start)? I've searched forums and the rest of the internet with no luck. Thanks for any ideas.

What i did with my 1/12 Camaro was i used the Calipers from a formula 1 car but i also scratched built my own rotors like that tutorial you posted. My next car that im working on now is a 1/12 pro Street Camaro and the calipers im using are from a 1/12 Nissan skyline. Since you are going for that pro touring look these calipers[Brembo] will feet the look perfectly....