I'm liking this idea more and more. The switch seems to be available in the parts system at the moment, (the other side with all the CC stuff is not), and runs $75-86 from various vendors I've checked so far. P/N - 1MC-83963-00-00 "Switch, Handle 3"
I'm guessing it would be necessary to pull the pins out of the plugs and use the plugs from the original switch, plus run a few wires for the flasher button, but should be possible to wire it either stock or with flashers still available with the key off.
I'm reluctant to spend the money to accomplish something I have already done for much cheaper.
I also wonder about the clearance for the larger switch assy. considering our throttle cables go over the top, rather than the FJR's underneath routing, (the way ours probably should have been to begin with!) It appears there is plenty of room and the orientation is close enough to work fine, but until someone does it, we won't know for sure.
I do like both the clean-ness of the solution if you just want flashers, and the location of the switch. No reach up front, it's right there on the bars where it should be. Hmmm.