Well, after a full two days of operating continuously, the plastic cup of water in the freezer compartment still isn't frozen.

I'll start on taking the freezer floor and styrofoam evaporator cover off this evening (hopefully). Then I'll wait for any remaining frost on the evaporator to melt and plug the fridge back in. I'm expecting to see a half frosted evaporator coil...

... but life is full of surprises.