I learned that the "rough in" is underway which means wiring, HVAC, plumbing and shingles. The windows should arrive soon and will be installed as soon as possible. Some doors have arrived and the others are expected soon.
After the rough in inspection is completed, the insulation, drywall and siding will commence.
Here are a few pictures a friend sent today:
Silver box in picture is back side of HVAC return vent.
There has been much more progress, but it's hard to see in some of the pictures so you will just need to trust me on that.
In short, I am very pleased with the progress!