I've heard of many people getting discouraged from buying a mini-split
because of installed cost was about 2.5 to 3 times the price for the unit (seen on the web).
So, it seems to me like you got the labor for $1,000 each unit.
Yeah, it seems high to me too, but not to a lot of installers.
With your prep work, and what looks like plain vanilla installs, they didn't have
to do a ton of work for their money. But, you got a good deal compared to what many folks pay.
Nice that it's warm weather. They don't have to spend a lot of time on the vacuuming.
The next time we have a heat wave, you're going to forget all about labor cost..