Thanks for all the feedback on the Audi = rims.
 
I've priced the spacers at a couple of = machine shops. Looking at $60 each. The whole venture is starting to add up to = too much.
 
A cheaper alternative may be to use = discarded vanagon rotors. Does anybody know offhand how thick they are around = the bolt area? They call for 8mm (~1/3") spacers. How much leeway is = there on this thickness? By going thicker could it result in a wider selection of = tires to choose from?
 
Also would anybody know the specs on = the Porsche studs that are required on the rear? These could get pricey as well = but there may be an alternative.
 
Phil