Sand off the corrosion, ending with at least 400 grit, feathering it smooth.
Scuff up the old clearcoat with 600 grit or Scrotchbrite pad. Clean well with a degreaser, paint thinner, etc.
Paint with Duplicolor Wheel paint, add clearcoat if desired.
Follow the directions on the paint can for applying coats.
I'd estimate this at a 3.0 hr. job, minimum.
If you clean the inner wheel, the tire installer can use the stick-on weights that aren't visible.
$6 a can, one can of color, one can of clear did all 4 of my 16" wheels....cheap enough?
2000 2.5 MO5D 4.10 one-wheel drive DD - gave to my older son
1990 STX 87 2.9 going in.....Junked it
2000 3.0 4WD M05D 4.10 S-cab Off-Road package with 235-75-15" tires, hotrod DD, lol