I haven't done it yet either, I think with the higher flows it should be easily done in a day if you start early.
Would you be interested in me tagging along? I'm in IK as well.
We did it yesturday on IK's at 3200 Cfs, excellent run at these flows! Fun class II+ with the exception of the "gorilla falls" diversion dam which looked sketchy but my friend ran it no ...