How is your line of sight from that location? EA is like 90 degrees from Directv.So if I switch providers the installer will need to put a new pole in the ground? Can't use the pole that the DirecTv dish is on?
There is an adapter that can be placed on the larger pole so that another pole installation is not needed. I have one that I can sell you or you can find them on ebay.
We always use an adapter for these types of installs. No need to mount another pole, just a waste of money and time.
Most cases throw a new pole down the center of the old pole, throw a couple pinch bolts in and be good. The real question is how many lines are trenched.