Just thought I'd give an update. I put the engine / transmission on Craigslist for $450 while it was still in the car so the buyer could see it running. Had a lot of immediate interest. Ended up selling it for a little less and included ECU, wiring harness, exhaust, and pretty much everything else connected to the engine.
The V8 install went well. It was my second one (first one was 10 years ago) and it took me around a month of an hour or two here and there to get it running.
Check out the quick video: https://www.youtube.com/watch?v=0hoQ-T0RX7E