Ok, my sprag clutch from seller "royalspareparts" was indeed received this morning. ebay projected a delivery date 12/3-12/11, and it was received 11/29. Order was exactly as advertised, a "genuine" RE spare, shipped in RE sealed packaging. Considering I ordered this 11/23 and it came from India, I'm very impressed and certainly will have no qualms about ordering from this seller again.
I ordered my 4 oil filters from a different seller in India on 11/19. ebay projected a delivery date of 12/3-1/7 for that order. So I haven't received that yet - but when I put the tracking number into an India Post tracking site, it does appear there is a package moving through - location is the Delhi Int. Mail Centre, with a status of "item bagged" and USA destination. I'll just keep an eye on that one...