I went ahead and bought it off eBay - was hoping for next day shipping - but, the one you linked to is different than your installation - probably same wheels, though.
I can't find anything like that on Amazon - all the wheels I can find are like 1 15/32 and that's what I've got that just barely won't clear.
If anyone has sourced something on Amazon or can find something that I can order quickly I'd appreciate the help finding one.
Thanks - that's what I would have done but I read the trolleys don't clear without hangers - I guess I'll have to wait until it arrives to see. Biggest problem is I have a fluorescent light right where I need to mount it. I might have to fold my mirror in and squeeze over carefully when I back...
How did you hang the unistrut? I'm not sure the trolley will pass a lag bolt. I was looking at hangers but don't really want it "hanging" like that. I'm using this strut/trolley combo. Looks like it's less robust than yours. Any thoughts?
https://a.co/d/1qTHpSE
https://a.co/d/iV45jHO