The 61.5 is barely making it to the left of the tree. a few deg to the right and you are hitting the tree. The tree is really close the garage where the dishes are therefore, you can't get through the tree or even above it. It's too close to the building. ...
They may find another place to put the 1000.4. My Dish 500 dishes were on middle of the western face of my roof. The new 1000.4 is on the edge of the eastern side of my roof, pointing to the south/south west. So again, I would recommend letting Dish send an installer and let the installer decide what is best.