Does anyone have any suggestions on how to install a clutch pedal assembly in a 1989 ford that was previously automatic?

 

My first question is why was the change considered? There are many things to consider aside from just the clutch pedal assy.
The computers are different as are the inputs and shifting.

You most likely need to obtain parts from a salvage yard, unless some later years used the same set-up. An interesting project to say the least..