Power/Manual Brakes?

I don't have any studs to deal with to use a converter. With regards to bore. They should roughly be the same. The Kelsey Hayes bore was 1" per the service manual and this one is 1.03". My old MC on the aftermarket unit was leaking and hacked up a little like the rest of the car so I'd rather not use it.

Here's what I'm dealing with regarding to the firewall...