Not my first time on here but can't find my old account details.
I need some help finding/locating a new clutch master cylinder for my RS4 Avant - part no 8E2721401AC. Any help appreciated. Or is there a suitable alternative that can be used from the VAG group?

These cars are only 17 years old. They are far from obsolete, but why is it becoming so hard to obtain some parts. I also need a driver's side lower door trim as this has now blown due to rust and warped the plastic. Audi haven't had any available for years and that guy in Lithuania who seems to buy up everything rare, doesn't have any either.
Many thanks,
Guy
Sprint Blue Avant, buckets. Factory original but needs some tlc...