Not quite Flintstone brakes, I have '69-up single piston GM discs on the front. Still have the manual drum/drum master cylinder, I rebuilt it a couple winters ago and it works well. Just had to make sure there was a residual pressure valve in the rear brake's port and no valve in the front brake's port.
I looked up the Canton recovery tanks. I'm going to measure and see if I can replace the one I have with a canton. Mine doesn't have enough volume. The rad will fill the tank when hot then suck it all back into the rad when it cools. Tank is empty when cold and I have to still take off the rad cap to check the level. Always right up.to the rim and I spill a couple drops off the cap onto the paint or chrome.