63-66 brake upgrade options

Looking for brake upgrade options for my very original low miles 66 valiant. It has a well running 273 but only 10” factory drums all around with a single piston master that runs dry after every short drive. I want to “just drive it” like I felt I could with my old ‘66 dart with the power steering and dual master disc brake upgrade.

The wheels are 13” 5x4 bolt pattern body color matched with very original 3 color hubcaps and I really want to keep them, whereas disc brake upgrade kits seem to require changing to 15” wheels.

Can I get a dual master / power booster setup while staying on the drums and 13” wheels all around? Is there someone who could help me with the right master / proportioning valve / pipes for a setup like that?