Power brakes or Manual?

[68 454 EFI]

Hey,

New to this site, just looking for some friendly advice. I have a 68 Camaro that is currently 4 wheel drum. I'm looking to atleast upgrade the front braking system to disc. I have heard that running 4 wheel disc brakes is a bad idea when the car sits for more than 6 months at a time as the rear calipers have a tendancy to seize? Also, i would like to get rid of the brake booster for esthetic reason's but i'm not sure if manual brakes are going to be good enough. The car has a fuel injected 454 which makes very little vaccume at idle. Seems like gettting rid of the power brakes and going with a decent manual set up is the best option. Any comments or suggestions is greatly appreciated.