I’d say become very well acquainted with green (dollar store) Scotch Brite pads and light machine oil this weekend. Nothing overly abrasive on any of the machined surfaces, just some elbow grease to brighten up the chuck, the hand wheels and the ways, then wipe it all down with oil.
If you get ambitious in the dirt and grime department, be sure to dry and oil anything you get wet. (No oil on the pulleys or belt)
It looks like the gear shift tumbler lever is pulled out and hanging down. If so, try without forcing it to maneuver it back into place.
It might take awhile to sell (or maybe not, you never can tell), but I wouldn’t take anything less than $500 for it. You have some tooling, a chuck with a key and potentially an extra set of jaws, a threading dial, and a steady rest which by itself might be worth between $100 - $300 alone.
Without actually inspecting the machine in person, or at least many detailed close-up well lit photos, it’s hard or outright impossible to truly evaluate the mechanical condition, but on the surface it looks like an old South Bend that needs some oil, some power and some love to serve it’s next owner well.
I am in IL as well. If you are close I will gladly share with you some of the more or less recommended oils for each part of the machine.
Thanks