Was digging around on the Web and found a reference for Westar EM-8642. Seems to be made for the 88-90 model years. Maybe that'll work?Thanks Garret. Appreciate the input. I picked up the 60 mount simply to have on hand in case I needed it. I am in UT, so can take it back to Cruiser Outfitters easily. I was buying a handful of parts, and figured it wouldn't hurt to have on hand.
For reference, 62 mount PN is 12371-61041 (NLA), and this is a pretty good description with pics of the two mounts (and aftermarket).
If anyone knows of a replacement PN or a NOS stash of these, let me know.