Sounds about right - just don't forget the hot water heater if you have one. You don't want that to be full of water and freeze up.
For ours, we also scatter Bounce dryer sheets over the bunks and I throw the remains of the Bounce dryer bars under the table, under the sink and in a drawer or two. The fragrance supposedly deters pests. I also fill an egg carton with some moth balls and place it in the center of the pop up when we close it up for the winter. We did this with our old one as well and haven't had issues with mice chewing things.
We also take the battery out and store it inside (in the basement) for the winter.
Finally, we have a large heavy duty tarp that we put over it as it is parked outside, admittedly right next to our garage where it is semi-sheltered, and strap it down tight. Helps protect the A/C unit and just generally add another layer of protection from the elements.