power brakes

hey guys, been reading a lot of great stuff on here since I joined. any way I have a 1971 swinger 318 auto, it has power steering but manual disc brakes. my question is since I already have the discs out front is there a simple reasonably priced way to convert to power brakes? I feel like just adding the booster and extending brake lines would be enough but don't know if there are any differences in the master cylinder etc. thanks for any help.