Wanted: 5.25" 40t drive / 5.25" HD media

Morning all... I'm in need of a 5.25" 40-track double-sided floppy drive (i.e. the venerable "360K" in PC parlance), preferably one with direct drive to the spindle so I don't have to worry about worn drive belts. Bezel color, height etc. unimportant, I just want a 40t unit to hang permanently off my desktop PC, as hauling one out of my vintage machines every time I want to write to a disk from there gets old fast. I could also use ten or so *HD* 5.25" floppies so I can get my Compaq 286 and the pair of Compaq luggables at the local science museum up and running - I've exhausted all of the local sources that I can think of. I don't necessarily need new-in-box or anything, but of course error-free would be good :-) Anyone got anything they'd be willing to part with? (I'm in the northern US) [Also, I don't see many wanted ads on the list, although as far as I know they're not frowned upon - apologies if they are!] cheers, Jules