Hello.
I have been looking for a new case saver for a while and found the Topar product. It is for the KX250 (according to Topar), but it fits the KX500. The case saver on the 250 and 500 is the same (for 2002, check your year) according to kawasaki diagrams.
A pic is on gallery page 7 under 2002KX500. (I might be a contributor to some of those blank galleries, sorry)
That MSR shifter also just made it through a 100 mile enduro without bending. So far it seems better than the IMS lever. The IMS lever seemed to bend. This one might break. So far so good though.
Hope the info helps.
Kevin