Greatly helped by youtube videos from Sterling Appliance, I replaced the following parts that were visually broken or leaking:
1. Dishwasher Spray Arm
2. Zeolite Container, Seal, and Nut
3. Air Cap Vent (Snorkel?)
While it looked harder than it was, in retrospect, it wasn't as difficult as previously thought it was going to be. It took me longer because I had to bring the machine out to a table, and I took my time to make sure I didn't miss anything.