I'm picking up parts for the conversion process - are the brake lines the same? So far I haven't seen anyone mention changing the lines or distribution block. I've got to get a new master cylinder because my original was roached out. My plan when I started was to do the minimum necessary to get my car back on the road, but I got a little carried away when I saw ScareBird's rear disc conversion brackets and realized there was an affordable option for rear discs. Now I've got a set of drilled and slotted Mark VII rotors and I'm planning on doing the 13" rotors and Viper calipers in front. I've got a little more research to do on that one since I'd like to drop the front an inch or two. I've seen a bracket that will allow the Viper caliper to be mounted to the drum spindle, and I've seen drop spindles, but I haven't seen a Viper caliper on a drop spindle yet. It must be out there.