'62 A/T Valiant park lever knob

I just need one silly little part to complete my '62 Valiant resto-rod. The knob on the park lever of my Torqueflite pushbutton assembly is trash. I think this may be a one-year-only part, since maybe the '60-'61 Valiant/Lancer knob doesn't attach the same way? Not sure. I'm attaching pictures of the knob and its lever.

The old knob is made of brown plastic, but I would also accept a white one. Its attachment mechanism (a clip??) must be intact and working.

I will pay a fair price for this part if you have one. Thanks.

knob.jpg

lever.jpg