Timing belt has been successfully changed! Old belt was only missing 14 teeth - including 10 in a row - and was about to shed some more. Tensioner was also weak as I slid the old belt off without relieving the tension, and the missing teeth were not a factor. I wouldn't have thought about the timing belt, so I thank you!
I watched several videos, including the one above, and while they are very helpful, every one of them leaves out crucial details regarding everything that needs to be removed to get access. Even the videos that show struggles make the job look like a piece of cake. It's definitely doable, but a 1/4" more clearance here and there would make it a lot easier. And all the guys making the videos somehow got their hands in places I can't get mine into, and I don't have large hands. To the commenter below one of the videos who says he did the job in 2 hours, including a trip to the parts store, after watching the video, I call BS. No way a first-timer does this job in anywhere close to 2 hours!
The adapters I recently bought that allow you to use a socket with a ratcheting box end wrench, came in really handy. A tire wrench that is used to take a tire off the rim works well to reach into tight spaces to push the belts into position. Long and thin, with no sharp edges.