I live in Dallas and actual dish employees have done my installs. They did a good job on two upgrades. Had to change out dish and switch on one and on the second had to change switch.
I live in McKinney. The installer that upgraded me to the 622 in May was a Dish Network employee. I don't recall what office he was out of but he lived in Prosper so it must be fairly close by. I assume you are in Fairview.
Still no installer yet, but we have 3 more hours of our install window. Hopefully he gets here soon. As soon as he leaves I will be going to bed to get some sleep for work tonight.