Welcome to the Forum.
I'm not as tall as either of you, and I went to a MRA Vario windshield.
The MRA Vario is actually lower than stock, but it gives more protection due to the adjustable fairing/spoiler on top.
MRA also makes a X-creen version that has a taller fairing/spoiler.
Might work well for you. I know some of the taller guys have used them.
https://twistedthrottle.com/shop/ergonomics/windshields-accessories/windshields/mra-variotouring-screen-windshield-for-kawasaki-gtr1400-08-14-concours-1400-08-14-4/https://twistedthrottle.com/shop/ergonomics/windshields-accessories/windshields/mra-x-creen-tour-windshield-for-kawasaki-concours-gtr1400-08-14-clear/Reason I mention this is; some have gone to much taller shields and the height caused extra load on the windshield mechanism.
We think, because of the extra load,,, a few have had failures.
Bottom line; If you go taller, don't go super tall, or keep your speed down when the windshield is extended.
Ride safe, Ted