I think it's actually almost done now. All I need to do is make the stop for the clutch pedal. I lengthened the lower arm on the Z bar and lined it up better with the clutch fork. That made a huge difference. The pedal is slightly higher than the brake pedal, but once I make the stop for it, it'll be the same height. Also I get complete release of the clutch about 2" before hitting the floorboard with the pedal. The pedal effort is a little stiffer than an ordinary car, but seems fine for a vehicle with a heavy clutch spring, and it's a whole lot easier than the one in my 78 grand am that I drove for 5 years like that. Those pictures helped a ton, having a working system to compare mine to. Once mine's complete I'll post a few pics of another working conversion.
Just a note to remember about the Z bar- Originally there was a big problem of the clutch pedal where it would move the Z bar about 75% of the way, but as you pushed the pedal to the floor then the last 2" of pedal movement, there was zero movement of the Z bar. The top of the pedal was rotating but the linkage rod wasn't moving forward- instead it was moving down. The fix for this problem was to move the Z bar forward a little bit, and to shorten the lower rod from the Z bar to the clutch fork. Shortening the lower rod made the Z bar rotate forward, which gave a MUCH straighter angle between the pedal and the Z bar. That was the trick, that made everything come together and work. The key to getting full pedal usage is to have the linkage rod constantly moving forward, not rotating down like mine was doing.