57 Willyspickup with Dana 44 Jeep axles

I'm looking to put a power booster on the firewall of my Willys pickup.
It has frame mounted pedals before, but I have removed all of that
and want to mount the booster on the firewall.
The axles are from a 79 Jeep Cherokee and are all GM brake parts.
The tires are 32x12.5 super swampers
I'd like to know if the Corvette MC will be plenty enough to fill the calipers
and wheels cylinders and still stop this thing.
I have already modified a set of hanging pedals from a 60's Ford truck
to fit under the dash. I want to use kit 6164BB2 but am unsure as to what is included.
When I purchased the setup for my 64 F100 several years ago, I opted for the
Chrome upgrade package and it included different set of brackets as seen here.

I also wanted to find out if a 7", 8", or 9" single and double diaphram is available in the 6164BB2 kit.