Just to finish off this writeup.

Good news: All non-driver inner handles are plug and play. No modifications required. Only driver door handle needed modification in my car (see beginning of this writeup).

Here is how existing handle looks like when we disassemble any non-driver door.
Inner handle is made of black pastic unlike driver's door inner handle,
which was made from aluminium alloy.
http://forum.a8parts.co.uk/attachmen...1&d=1367877645

Inner plastic handle removed.
It has holes for outer handle of proper size.
http://forum.a8parts.co.uk/attachmen...1&d=1367877645

Outer handle married with inner handle.
It takes 3 seconds. No modifications needed.
http://forum.a8parts.co.uk/attachmen...1&d=1367877645

A6 C6 handle installed with stock plastic inner handle.
http://forum.a8parts.co.uk/attachmen...1&d=1367877645


I've got a set of A6 C6 handle covers from James car,
colour code LZ9W (ebony black) in great condition.
I can gift those handles to someone who will make this
mod within a month time and publish pictures in this thread.
http://forum.a8parts.co.uk/attachmen...1&d=1367877645