Here's exactly what you'll need:

- Rear trailing arms
- EBrake cables
- Master Cylinder
- Prop Valve
- Brake booster

Like someone else suggested, do the front too. I just finished doing this conversion and it is absolutely worth it. I also suggest maybe replacing your brake lines with stainless steel ones. You'll get a lot firmer brake pedal this way. It's nice. The front brakes are a little more trickier to do than the back so you might want to hold off on that until you get a good understanding of the brakes in the back. Expect your car on jackstands for at least a couple days if you've never done of these before. Most of your time is gonna probably be spent going back and forth to the part store. Just to save you some time, you're gonna need a flaring tool, a pipe cutter, a deep 12 socket, some of those wrenches for the brake lines (can't remember the name off top of my head), some cotter pins, a big ass breaker bar if you're doing the front axles, and I think that's it. Good luck.