They will install 2 Hoppers and 1 Joey. Just tell the installer you changed your mind and don't want the 2nd Joey. You do not have to have it hooked up. There are many posts on here that say the same thing. I ordered 2 and 2 from Dish and not a local installer. When he arrived I told him that I changed my mind and he never even brought the 2nd Joey in the house. I totally agree it's stupid but it is so easy to play the game.
Good to consider these posts. I may order 2H/2J and pay to own the two J. Installer sets all up. Well, I'll have done the wiring. Then I can deactivate 1 or 2 J and just activate when needed..Different people have different luck. A lot of installers "must" complete the ENTIRE workorder in order for it to be a success. Thus, both Joeys will have had to be activated, then deactivated later. My method is just the safest bet. If you ended up with an installer that could get it done without doing that, that's great, maybe others can too.