RS7 rear disc/rotor info?

[Hal Adams]

One for someone who is intimate with Audi numbers and prices - especially for Aoon if you are tuning in these days...

I am changing the rear brakes on the RS3 for the RS7 wavy disc - BKS make caliper extenders that I have on order, but I need some info on the actual RS7 disc - the p/n and price specifically and if I need anything else to make the change. My local VAG parts place is being typically French and will not give me anything without a VIN number as there 'are too many variants' - I do not believe there are but I cannot find any RS7 parts lists online. So any help appreciated...