They arrived about 2 minutes after my previous post.
Equipment is staged, holes have been drilled, connections are being soldered, and other activities are taking place.
And again, they apologized profusely for not being on time.
Seems the "Special Deal" through Home Depot has been selling like hot cakes, and they're up to their eyebrows in work.
And one of the two guys is one that came the other night, they're both very knowledgeable and professional, and this should be an easy installation for them, seeing as they can easily get to all the pipes to plumb the system in to the house.