Seeing as the original bars are shit on a M* Roadking, I ordered a set of the subject bars from JP Cycles in the USA, and they were on my doorstep 5 days later. Awesome service.
Fitted them up today, and they are perfect for my 6'3" tall frame.
Fly By Wire had more than enough lead for the extra height, but the switch wires need to be extended before I can internally wire them, so for now, they are on the outside.