I hear what your saying about Harleys not being built for tall guys.
I'm 6'2" as well and have struggled for comfort on every bike I've owned.
I love my HD stock solo seat on my Street Bob. So I am considering extending the forward controls by 2 or 3 inches for a better leg stretch. I am happy with my Fat Boy style drag bar for comfort and distance from the seat.
Just consider that the slope of your shins will deflect air at highway speeds. Likely straight up your nose. I get buffeting at speeds over 130 km/h (80mph) and wind straight up my nostrils makes it uncomfortable to wear a half shell or no helmet on the highway. I have resorted to a full face helmet for highway rides.