Welp, project is done. Arrived at 9, left at 3:37. 4 guys on the roof, 2 guy in the attic, and the foreman working near the meter, installing the pipe up the side of the house and the gateway and switch boxes. Very clean looking install. 12.88 kW_DC rating.
Only drama was getting internet to the gateway. My Router is opposite end of house, and does reach to the garage breaker box (and the neighbors house on that end... but the 16" stone wall of the garage blocked the signal very well to the equipment outside. I came up with the solution, a wifi extender, and drove myself to a MicroCenter a mile from my house, to get it. The crew got a few more minutes to clean up and shoot the breeze while I configured it.
They seemed happy when it worked and I solved their problem.
I have to wait for the company to set me up with login info for the gateway and stuff... so no addiction for me yet.
Also, apparently protocol is that the array IS hooked up to the grid on install day, and I just push free power to my utility until they come by and do a safety inspection and reconfigure my meter for net metering.