You can probably have them dipped at calchrome, but I'm sure it would be very pricey and you would have the added weight of chrome.
I searched for over a year for a place to powder coat my 505's in black chrome. Once I finally found a decent shop to do it, they looked at my wheel and figured they could not do it due to how close the spokes were. I was told they would not get an even spray for the pc and it would create a very uneven surface. By looking at your avatar, I'm guessing your wheels would be worse than 505's!! LMK if you find a place though!!
btw, polishing is a beeotchhhh!!!