Just a quick update.
The insulated door kept the garage a nice, even temperature even on the very cold days these past two months. This was surprising, since there are no heating vents. I may have vents installed next year if necessary, or sooner if heat and humidity are a problem this summer.
I picked up some wire rack shelving units (5 shelves at 10 feet long total) at Target to hold all the Rubbermaid containers. They stand about 6 feet tall, so the top containers almost meet the ceiling. I arranged them as a view block for the lawnmower, cleaning supplies, and general unboxable "stuff". This gives the garage as polished of a look as possible.
Walls and ceiling look good, and I started to go back over my drywall work to make it look a little more presentable. Kills primer is all it'll be.
In a few weeks, I'll start the floor. Depending on the quotes, the floor will be either stained and polished or epoxied.