So I adapted the 1957-1960 Ford truck hydraulics to my FE and 65 F100. I made a bracket that uses the left two bellhousing bolts to mount the slave cylinder. I made a pushrod for the slave cylinder to operate the clutch arm. It has plenty of throw, too much really. The bigger problem was up top. Even mounting the clutch cylinder as close as possible to the brake cylinder, the pushrod for the clutch was about 2 1/2 inches to the left of the clutch pedal arm (I was using a stock clutch pedal). This meant I had to weld a cantilever portion onto the pedal to operate the master cylinder. It worked until the pedal broke off the pivot shaft. My eventual fix was to buy another brake pedal assembly from a junk yard and cut down the bracket to only what was essential. This got rid of the cantilever and allows the pedal to operate the cylinder straight on.
So, after all that, it does work and it has been very reliable.