You could ask someone who has replaced their W650 rear fender because of the splitting if they would sell you their old fender and you could just chop it off and still have the protection. I believe the Jerk replaced his rear fender with the new improved version.
Vince @ SWFL or WNC
2001 Kawasaki W650
2012 Dong Fang DF250RTB
2013 Ice Bear PBZ110-1P sidecar
2015 Ural cT