I've cleaned up the stock finely machined finish by hand using 0000 steel wool, chrome polish and elbow grease. Tape them up with painters tape, mask off with a razor blade, wipe down with acetone or similar, paint at home.
I've also had the outer rims and ribs polished professionally. At the time (the shop I used to use raised their prices SIGNIFICANTLY recently), the outer rims were $100 for both wheels and another $100 to do the ribs. Then I taped and painted myself. Bearings and such are the same as a stock wheel.
I had a set of Henry Abes powder coated. They ran them through their oven to remove the old finish and let me take home a roll of the special tape they use. Again....hours of careful masking and trimming, then they powder coated them black, removed the tape and cleared over the bare area.