I got the part.
Only reason was that I had stopped at the local PO after starting this thread, and asked if they could track it in any more detail than I could at the consumer site.
NO, it was still in New York state.
A couple days later, the postmaster called me and said they had a heavy package come in with a blank-appearing shipping label with neither my name or the tracking barcode visible.
It was my part. He asked me to bring him the tracking # from ebay so he could report it delivered, as the barcode wouldn't scan and the info couldn't be discerned by human eyes.
1. The useless seller waited 11 days to mail the part.
2. He covered the Paypal shipping label with clear tape that absorbed/destroyed/obliterated the printing. (I saved the label and will post a photo when I have a few minutes.)
3. Somehow, the PO did a remarkable job of getting the poorly packed/labeled part to where it needed to be!
Should I leave the ebay seller (+) feedback?