The WRR accessories don't always match/compatible with the YZ and WRF line. I see Zeta makes nice pivot clutch and brake levers though.
Here's what I'm adding for now.
Zeta hand/lever/flasher guards
Edge tail light; Zeta drive, heel, and rear disk guards
A minimalist dirt/street bike, with nice suspension. When the skid plate goes on, the can will come off. Thumpertalk has a great page on this bike.
I can't stop smiling.