This has happened more than once using the eBay shipping services. The one where they bent the frame on a 5340A and nearly shook apart a 141S was the last straw.
While it is late to point fingers, I recommend you open a commercial shipping account with DHL. Twenty shipments and everything has arrived safe and sound.
Good luck on finding parts. I had been looking for an 8601A for some time before finding a great one. I see them on eBay but caution you to my earlier point.