Ignition key will not turn

Yes, finding a replacement might be difficult, try eBay. Here are the instructions on how to change the ignition switch out once you do find one. You might want to call a locksmith to see if they can help. Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.

Will a universal push button switch work? From eBay? Blue in color and round. Thanks.

It might if you do some modifications, please upload pics so I can help you when you get the part.