Hey Willy,
I was able to source the right side brand new with mounting hardware from BMW of San Francisco. They stated they have access to 10 more (in USA) of the passenger side but once they sell, they are NLA just like the driver side.
http://www.bmwpartswarehouse.com/BMW...-0-150-780.htm
If I can get access to a driver side Aero side skirt, I have access to an industrial 3D printer and can do some experimenting to make more of complete sets.
I will pay top $$ for a driver side if anyone out there happens to run into one..finders fee can be arraigned too.
Part Numbers Needed:
51-71-0-150-780 - Passenger Side
51-71-0-150-781 - Driver Side
Cheers,
Phil