Agreed with the comments above. In addition to the akebono bbk upgrade, even if you score a nice deal for the used calipers and rotors. You would still need the rear knuckles from the gen2 FX and tc6 ball-joints to make the rears complete. After all parts are accounted for, the price is not much in difference from La_FX35's bbk offer. Either way, good luck.
93octane used as well.