Okay, for some reason, I ended up with two sets of these wrenches. I think they sell for $60 each new, but if someone wants the set for $100 shipped (CONUS), let me know! Brand new, never used.
I ordered this for the GEN5, but may fit other years.
Kawasaki Hook Wrench T=3.2 R37 Part# 57001-1539
Kawasaki Hook Wrench R=35 Part# 57001-1580
Page 13-25 of the Full Service Manual