hey i really dont know about any rear disc brake kits on the market that have the option of using e brake on the calipers most of the kits require you to use a drive line brake that i think is like 200 dollars wich sucks, im going to run willy mammoths brake design you can buy all the parts from a junk yard or all new stuff from an auto parts store near you the design is simple but you need to make some brackets and machine some axle parts, message him and ill bet he'll give you the run down.