You have a few choices. You can use the carrier you already have and use a 03+ hydro caliper (much better than the cable ones) but you will need to mount a rear master cyl, and also fab up a brake lever to work with the master cyl.. Or get a right peg/pedal set up from an 03+ and then you will only need to mount/ fab a bracket for the rear master cyl. Or I guess you could cut the tabs off of the rear carrier and mount the cable caliper ???? << that would be "my" last option. Rear hydros are a much better way to go.