Why don't you see what is available from the used car wrecker.Most local cars have excellent 4 spot calipers ,even my old falcon ute has them standard.Try an find an old stub and match it up.My mate converted his challenger from Dodge to valiant and is useing standard brakes.I plan to keep the 340 Duster fronts as they are 4 pot but they don't float so not sure if i can change that or not as i've got other little jobs to do.Good luck
