I have been busy at work and didn't get to post my day-by-day replies, but here is how it went:
The Friday following my post here, the box arrives. I pack up the 809 with the included supplies - they even gave me a roll of packing tape to seal the box! I drop it off at the Fedex store on Monday. It arrives at Onkyo on Tuesday. I thought that would start my 6-8 week waiting period. But, I got a text on Thursday from Fedex saying that I should expect a package on Monday! I had it re-routed to the Fedex Office since it required a signature.
Turns out, the text was wrong - they tried to deliver it on Saturday! If I had been home, I would have gotten it even earlier than I did. But, as it turned out, I picked it up after work Monday. Everything works just as it did on day 1. No hassles at all! I'm very impressed with the effort by Onkyo to fix this for me.