I finally got the person at the plumbing house at 3 PM, after leaving 2 messages and calling many more times. Good thing I was prepared with my list of fixtures, complete with model numbers--she didn't have the "L" (for left-hand version) on the kitchen sink, and had a wrong, and much more expensive, instant hot-water heater, one that included a tap for filtered cold water in addition to the hot. My job is water use: I drink tap water. (And Atlanta water is not heavily mineralized.) Once that was straightened out, I gave her the credit card number and that's done.
I see that various types of molding have been delivered for the trim work around doors, and eventually the baseboard--I assume they'll trim tomorrow, and try to paint some either tomorrow or Friday around all the deliveries.