According to Kawasaki only the 89 kx125 basket will fit your bike.
I do not have any to compare to tell you what the physical differences are.
I checked with Kawasaki, Hinson, Mitaka, Moose Racing, Talon, and Wiseco, and none have a basket for your bike.
I'm not saying that someone does not make one that will fit your bike, but, I can't find one.
I checked on eBay and I can't find one.
I would look on eBay every day.
If only the only damage is the tang faces are worn out would be to take your basket to a machine shop and have them weld up the tang faces and then re-machine them to the correct size.
