Bottom pic, right column, the view from the rear left...... there is a flat place between the passenger foot pegs....the license plate on my 848 Streetfighter is mounted there. That'd be a good place for your license plate.
I mod bikes less and less these days, but that OEM license plate holder has to go; as do the stickers on the tank, and chain guard. Remove the reflectors, and the passenger pegs. Just my opinion.
But that motorcycle doesn't need much. I'm pretty much done with exhausts and Power Commanders.
I like it! I'd like to ride one! Well done!