Master cylinder for 10" front drum swap

I need to know what master cylinder I need for my upgraded 10" front drums on a stock brake syst 63 valiant single reservoir. I found one at the junkyard but I believe it's for a disk/drum out of a 70's volare and not sure if that will do. Am I going to have to re work the system for the 2 reservoir? New proportions valve??


Thanks!!!
Jake