I have a lot of rarely used macs that I use more often as the source of spare parts for things like this than I do them..
These are mechanical items which need greasing every decade or two and most haven't been looked after.
Somewhere on the site may have one spare to sell.
However, I think that the Floppy EMU from BMOW may be the way to go:
https://www.bigmessowires.com/shop/product/floppy-emu-model-c/