This is completely stock. No brass quick connect. Thank my crappy photo for the confusion.
Dealer is going to contact BMW tomorrow. Got my fingers-crossed they'll comp it. At least the parts.
The tech mentioned that the flange is no longer available - ya gotta buy the whole pump assy
Looking at the 2010 GS fiche I see it uses the same pump P/N as the 08, and the flange is NOT listed as a separate part. He's probably right.