Once you get the master fixed, put it on the bike and reverse bleed it. You don't need to do any strange handstands or incantations, and no black magic or sacrifices to the Brake Gods.
Just get a good size syringe and some plastic tubing that will fit the syringe and the bleed nipple. Fill syringe with new brake fluid, open up the bleeder and slowly push fluid into the system till the master is full and no more air bubbles come out. This method will give you a good solid rear brake.