Thanks for the informative replies guys.

Mike52, Thanks for the suggestions.
It was recommended to run a Corvette 1" m/cylinder on a Kugel under dash 90 deg brake setup, which I was told had the reservoir capacity to suit my calipers. They are Willwood rotors and calipers F&B so I will give them a call next week and see what they suggest.

I'm also a bit worried if the wife ever gets to have a drive that the brake pedal will be too heavy for her without a booster.