Just to follow up, I talked to Jason at P&J's and he shared that they're no longer doing their chassis' the way mine was done back in '09, and he shared several options for me to consider. We quickly got to the point of power brakes really not being needed on a light coupe/roadster hot rod. Bottom line, I'll be taking off the booster, and if the master can mount direct to the bracket I have and be accessible from a hole in the floor that's the way I'll go. If not I'll be cutting that bracket off and using a different one that shifts the master back about a foot or so, making it accessible for fill.