Man! This looks like cool stuff.
As most of you know I stuffed my master cylinder (1988 S-10 manual) in the driver side cowl of my 69 Camaro. While this is cool as snot, it limits me to manual brakes. Although manual work fine, there is something about using minimal leg power to reign the car to a stop.
I found these:
http://www.abspowerbrake.com/ElectricHPpage.html
The 8" unit would fit like a champ and there is ample room below it in the cowl to mount the electric booster.
Anybody have any experience with these?