69 firebird disc brakes

I have a firebird with all drum brakes.My first question is considering the front end. Is there a commonly found car out there that has a master cylinder & spindles that will bolt up? Will that master cylinder have the capacity to operate rear disc, too? I am parting out a 79 trans am & want to put the rear end on my 69.

use 69 camaro/firebird,69-74 nova,omega,apollo front disc brakes and use the factory power unit,brake lines and disc master cylinder,as far as rear disc,I would keep your old rear and convert them to disc brakes with mostly factory parts,I think mid 70's camaro rear disc rotors will fit plus use cad seville rear calipers,almost a bolt on application.good luck