It can be pretty close. I will agree that 4 wheel manual drum brakes may be iffy but I have locked up all 4 on my 66 with a single reservoir master cylinder. Ya may be a little dicey.
I put dual points back in my dual point. Not an issue. Creature comforts would be nice but that's what owning, driving, and enjoying an old car is all about. Make it safe and drive the wheels off it.
