On my 31 Plymouth coupe, I used a Wilwood triple master race car setup that hangs under the dash, but keeps everything out of the way under the dash. One master is for the clutch, one is for the front brakes and one for the rear. It has an adjustable balance bar between the 2 brake master cylinders to mechanically adjust front/rear brake bias. I like it.
FOr the gas, I used a '64 Buick Riviera setup that has a nifty little firewall pass thru for the throttle arm. I cut it down to fit as needed, and welded a little foot pad on it. Very simple, compact and reliable.