Adding Cruise Control question

[RaceProMarketing]

Does anyone know how difficult it is (and costly) to add cruise control to an '83 that didn't come with cruise? It has every other option, air, all power, etc. but not cruise.

I don't want an aftermarket deal; would like to keep it looking factory. Does the entire column have to be changed out?

I have terrible neuropothy in my feet, along with a bad arch on my right foot, which makes it painful to drive long distances without cruise.

But I love to drive my truck and would like to add cruise if it's not a crazy amount of work. Any help appreciated.