best disc brakes for sbp

I also checked out scarebird's setup but a few things didnt add up to me so I didnt go for it yet, still running drums looking for a good kit. scarebirds setup uses 1990 celebrity calipers and 1991-94 Toyota Previa rotors. but why would he use these type rotors if there are so many newer cars that are very close to the 5x4 bolt pattern but in metric (5x100mm)very little mods would have to be made to the bolt pattern. such cars as the popular cavalier,and most of the chrysler products in the 90's and even still today such as neon use this bolt pattern

Bolt pattern isn't the only caracteristic of a rotor. Diameter, thickness, offset, all come into play. I wouldn't want a rotor that was loose fit to the stud pattern anyway.