I actually found a original 4 piston setup and had the calipers rebuilt at Lonestar caliper in texas. i went through a corvette dealership near my house $125.00 each caliper and then i bought a 9" booster from Right Stuff detailing for 179.00 and then i order a combo valve from Mp brakes i bent my own lines and i already had a the master cylinder. so far i think i have less than $600 or between $600-$700