If they originally looked good, you should be able to polish them back to that shine (presuming that the clear hasn't been compromised by salt/corrosion). As Guz says, removing the clear is asking for trouble. I had a similar set of GM wheels that I had refinished at one of the premier wheel refinishers on the east coast, if not the country, and they didn't repolish them to the same "color" (shine, in polishing lingo) that they had been previously, and unfortunately I didn't put the wheels back on the car for a long time and didn't realize how dull they were until I had the center caps back on. No one will ever mistake my wheels for chrome again, that's for sure...they actually look more like silver painted now.
PS If I had known it was going to play out that way, I would have polished them myself after they stripped them. Do you drive yours in the snow? Are the barrels painted? Do you have black brake dust from driving down the block?