1979-1980 Yamaha MX 100 Search

I’m trying to relive my younger days and find the 1979-1980 Yamaha MX100 that I had when I was 10 years old. Unfortunately, this model seems to be hard to find as I can’t find anything anywhere online. I’d appreciate anyone that can point me to a resource that might have visibility into where I could find one. I’m not looking for a museum quality bike, but would definitely like something in good shape that I could putt around on periodically.

Please notify me of anything you might know of.