I second that how much did you have the car appraised for? I am not sure I would have just bought another car and transfered part would have been cheaper...plus not having to worry about alighnment...Please keep us updated on what the car drives like and such...
I don't know if dealer option or aftermarket....many dealers had aftermarket parts from local distributors on show room floors as a way to make extra money...I spent a few hours cleaning mine up, next step will be to repaint them and but a clear coat on the aluminum...