Below is a sketch of where the m/c and the pedals attach with some measurements. M/C holes measure 1.6250", mounting holes 2.30" apart, and the center to center measurement for the brake masters are 2.50".
I am using 11" vented rotors up front with Wilwood Superlites, 10" vented Dynalites rear. I have seen the pics of the original style footbox for Jeff's car, looks good.