Quick update: I dropped the oil pan and found metal shavings. Engine is toast. I really enjoyed the 10 miles I drove. Looking at options now. Rebuild or buy a low mileage engine.
You have a much better attitude than I would have. You might as well do another engine swap when you're mentally "ready" for round 2. Honestly, it will go much faster the second time, even if initially it feels overwhelmingly frustrating.

