I simply do not understand the question.

The brakes are shot, they need to be replaced before it hits the pavement under it's own power. You are all jazzed about getting the car but don't want to pony up for the $40.00 (or whatever) for a new master cylinder? You do know that if the MC is shot (and empty) the rest of the system is junk too, right? Almost sounds like a MoparJamie post!