Distribution Box Head Unit

Google smatv and that should give you a good idea of what you're getting into.

You need to describe the site more specifically. Where is it and how far are the buildings from the dish locations??

Then I would look at all the satellite lists on various sites and at Lyngsat, and would determine which stations you might prefer. Generally, I don't want to do without the seven or so Ku PBS stations on 125 west. Then I don't want to do without the C band Retro offerings of like 87 west or 137 west. That's another half dozen stations. I like 91 west lately for two or three C band offerings there.

Fixed dishes are nice, but a lot of this FTA stuff is a moving target. It's here today, gone somewhere else or gone altogether tomorrow. There is plenty up there, but there isn't really any "set it and forget it" configuration. You do have to follow the signals in order to stay happy with true FTA viewing.