76 duster clutch pedal will come up 2-3 inches off the ground but not all the way

I think I can see your problem from here.
There is no way you should have been able to take that picture, with a camera; the fork should have been all the way forward in the window, and obstructing your view.
That geometry is controlled by;
the height of the fingers relative to the pressure-plate, the thickness of the clutch disc, the length of the TO bearing, and the height of the fork's pivot. One or more of those I think is wrong. And of those, the most likely is the PP and/or disc.
Unless the thrust bearing is gone off the crank, but surely you would be hearing it clatter,lol.

Let's wait for another opinion.