[Zeke's Garage]

I'm not completely sure the linkage or the pedals will work as a direct bolt-in from the '80s donor. I've never held them side-to-side, but you may have issues with your brakes as well as trying to sort out the clutch. The Z bar that runs from the frame to the ball on the engine may or may not be the same length/angle/location either.

Going the hydraulic path for the clutch seems to me more trouble than it's worth unless you're using a newer NV3500/4500 or similar that requires it. You'll still have hassles getting the correct pedals, then you'll need to fab up some kind of linkage to a clutch master cylinder that you have to custom mount on the firewall.

Don't get me wrong, it's great fun to tinker and fab if that's what you're out to do, but I don't think it's the easiest path. I would think you could find 67-72 set of pedals and Z bar much easier than almost any other generation. There were/are lots of people who swapped from 3 on the tree to Automatic.