Not a lot really,
Swap out the hub/control arm setup.
Swap out the Drum brake line for a disk brakeline (25.00 ea from autozone)
Swap out your e brake cable and or leave it unhooked. (I got mine at Napa last time)
All and all as long as you don't have any lock up bolts it's 3 bolts and about an hour each side.
I'm charging $75.00 each side, that comes with the Hub's, Rotors, calipers, Control Arms, brackets, and the three bolts each side.
You would need to get the brake lines and e brake cable.
"Dream like you will live forever, live like you will die today"