As far as the mounting, heres a picture.
As far as the linkage, you gotta figure out how long of a stroke the hydroboost needs, and measure how far the peddle arm moves at different heights until you find the right amount of movement. On mine, it ended up a little bit below the factory hole. My hydroboost came with the push rod, but it was a little short so I welded a small piece on the back of the peddle. For my clutch though, I made a new rod long enough to mount to the clutch peddle.
With the clutch MC, I mounted it in the vertical rib on the firewall. I cut some 1" pieces of 1/2" OD tube and sleaved the bolt holes between the rib and the firewall. I'll try and get a better pic of that.