Those rotor dimensions could present a problem. The stock rotors are 0.810 thick so with stock '71-74 calipers, your front rotors will need new pads ground down for clearance (or used pads). With the rears being thinner than stock, brand new rear pads will be needed and the owner would need to keep a close eye on them for to much wear. Ventillated rotors are very desirable, but these are not quite a bolt-in to early Panteras. Maybe $35 each as a guess?
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