If an installer doesn't want to climb that ladder or any other route to that dish he's in the wrong business!!
Evidently you have never tried to set up a 40ft ladder between two houses that are 6ft apart to try and just check for a line of site or have only had the option to put up a ladder on a hill side and have your ladder lean badly.
called Dish back and they said it was a lead tech.. they was out here and said if he couldnt get it, then it cant be got.
Call 1-800-333-3474 wich is the primary number for dish, they wouldnt know if it was a lead tech or not, besides as a former lead tech for dish I can tell you that not all lead techs nor the field service managers have a good eye so pressure them for another opinion or you could always ask me to come out and take a look as I am in Athens.
I have walked away from these, not all existing systems have a line of site for 61.5/105/110/119/121/129/148 or in the case of one potential customer there was no way that I was going to climb 100ft up into a tree to swap out a direct dish for a E dish regardless of it being the only line of site.I just can't figure out why anyone would walk away from an install that already has a dish and wiring in place!
On the second set of pictures from behind the dish I can see that the pics were taken at an angle and the tree's are taller than what you would initialy think, a second opion is definitely in order and if dish wont send out an E tech then look for a local contractor to come out and take a look.