I have never seen that on an IS-F. I think it would be a better option to buy a set of aftermarket wheels as chrome plated stock wheels may not be to the taste of everyone when you will sell the car.
I think he said he had them POLISHED... those are not chromed. Thats def going to give you a new pricepoint.Not bad with the stocks being chrome plated. My wife currently has a MMR gs350 with the optional 18" chromes on it and it looks great, but the F is a different kind of car.
One pain with the chromes would be the excessive brake dust from these cars will probably keep them looking dirty all the time!