I use some old TJ steelies for our utility trailer and painted them last year.......
Starting point....
finished......
The white stuff on the tires around the rim lip is the "lube" from the tire place when they mounted the new tires.
Sorry, no pics of the wheels on the jeep.
I took the wheels to the shop and sandblasted them front & back and used a couple of cans & coats of tremclad black (after priming them)
Hth