Delayed Post: June 19, 2018
License plates are a necessary evil for road motorcycles. They are ugly and clutter up a good looking bike. I opted to go with the vertical orientation mount off the left rear shock. Apparently this isn't quite legal as the plate is supposed to be horizontal but I'll risk it...
I made my license plate mount out of some 1/8" aluminum plate and 2"x2"x 1/8" aluminum angle. I opted to drill and thread the mount holes to keep things clean and avoid needing nuts.
I sourced a minimalist license plate light off ebay for about $10.