Some paint bubbling due to heat cycles, I have had much worse! Have seen PCCB calipers on normal discs, see threads/posts on Rennlist forum for more information. 99735142832 or 997.351.428.32.
208787.01.1A or 208787011A. I only sell Porsche OEM items! I know a brilliant, and reasonably priced, man with a van who I can get quotes from too.
More info on my website. Please see my other Porsche parts listed!