First off, for the 750 brakes, you will need the rotors, calipers and the carriers from a 750. Best bet is to find a junker that has a 750 to take parts from, but that is rare.
Yes the rear brakes are the same.
IMO, the additional stopping power vs. the $ for this upgrade is not worth it, unless you are putting down some serious power, moreso than a 750.
I just purchased Brembo rotors (blanks), Akebono Ceramic pads and SS Braided lines that should be going in sometime soon.