7/8 bore master for 73+ a body discs?

going to re-plumb my entire 65 valiants brake system. i have the 73+ disc swap for the front and the stock 10" drums out back. I have a wilwood adjustable distribution block already. I want the brakes to stay manual and want as little peddle effort as possible without having to push the pedal all way to the floor. i found this master for a 95 plymouth shadow. part # m39736. cost $35 new from rock auto. has 7/8" bore. what do you guys think?