RS3 8V Wheel Choice

I simply asked my dealer, they are the only Audi dealer I have ever had a great experience with. He went and got the information off their demo which has the wider fronts so he is guessing the rear ET will be the same on the front for those with the same size. I really want satin black wheels and not a huge fan of the rotors but worried if I buy others they may not fit or rub so currently changing to the black rotors as my only safe option :disappointed:
 
I'm also travelling over 100 miles to deal with them as all my local dealers are arrogant and useless!