I would put them on and roll with them a few weeks to see if they look OK. This is the trouble with powder coat. Very difficult to know if your paint procedure will stick over time. IMO: Best to get non powder coat wheels or stay with the color. The other problem with powder coat is you can't touch it up. Powder coat is over rated on some components. Very durable on others. I think it's only for trailer queens/show trucks, kitchen appliances, household items, patio furniture and static objects.
The procedure is said to be: scuff up (some say chemical strip) clean, clean, clean, find a primer that sticks, find a paint that sticks.
A regular good paint job on steel wheels, frames, brackets, all the black stuff on our trucks, looks as good as powder coat and can be touched up easily. Good old gloss or semi gloss Rustoleum. 2-3 coats.........(or POR......or EP & Poly...........if that makes a person feel better).
This is not to say there are many who swear by powder coat. But if you ever chip it or have to remove it to weld something, you will swear at it.
