Hi bike-pusher,
My K2 came with 400F bars (I'm pretty certain) - they looked good, but in reality were just too tight a fit in that the master cylinder boot was pretty hard up against the tacho. There was only one position you could have them, and the tacho damping was all but lost.
As you know, OEMs are virtually impossible to find, and I fitted the DS replicas. Not impressed as the cut-outs for wires (one side) leave a gap between switchgear & throttle, and the cutout for switchgear anchoring is in the wrong place, meaning the bars are (slightly) in the wrong rotational plane... dictated by the mirrors. (I've sourced a not-so-new Honda set... but am yet to fit them..)
BIG trouble with this problem is the sheer bloody ar*e pain of threading the looms.... ie measure up precisely before you commit! (like wot I didn't)
Simon.