Just wanted to update you
TUN3D since you helped me out a bit. I did NOT need to buy a new washer fluid tank to fit kerscher +15mm Fenders. You DO need to buy 1m side markers and the gaskets though.
The washer fluid tank SHOULD be replace, but it's not 100% necessary if you can live with knowing the tank is pressing up against the side marker ever so slightly. I had to force the side-marker in, but it still mounted up fine and the force doesn't seem to stress the fender that much.
Thanks for the DIY on how to swap the pins on the plug! that was some invaluable knowledge to have when dong the retrofit!
Clearance:
Test fit - this is as far as the side-marker will go without force:
Gaskets you need to by that are used to mount the side-markers:
