If you are going to drive this on the street, you need to get it inspected. If you are going to get it inspected, you need an e-brake. Disk brakes work great and are easy but the e-brake situation is a pain in the ass. You can run a High Angle Driveline t-case e-brake but depending on what you already have, that could cost up to $500 (output flange, e-brake shiz, and driveshaft flange yoke). I would stick with drums unless you budget in a t-case e-brake.