SBP swap from drum to disc

Your upper and lower control arms will be the same, but you'll need to change spindles over for the discs. You'll need to change your master cylinder over from drum/drum to disc/drum, and change your proportioning valve (distribution block) over to the disc brake one.

To add power brakes, you'll need to use a master cylinder for disc/drum intended for power brakes. You'll need the booster, a vacuum line to your manifold for the booster, the bracket to bolt between booster and firewall, and the pushrod from brake pedal to booster.