From manual to power brakes

I've recently seen where many people have wanted to this. I'm referring specifically to the booster back to the pedal. I know that on the engine side of the firewall, a new bracket is required. But what about from the firewall to the brake pedal?

Are the brake pedal lever, linkage, and brackets the same for manual and power brakes, or are they totally different? I have an A-body and a B-body I'm thinking of doing this on.