If you can't find anybody here to remove them and will have to pay somebody to do so, you might be able to make up some of the money by removing the FEEDS & lnbs, and offering them here. It only takes a crescent wrench and screwdriver.
Fiberglass/Composite type dishes like those, are extremely heavy, and you'll likely need pros and a crane to get them down. Depending on the height of the building that is.
On the other hand, fiberglass/composite dishes are REAL easy to cut up into small pieces with a standard electric circular saw.... I've done it myself with an old 11 foot one a long time ago, and then placed it in the garbage. It was amazing how easy they chop up (they are hollow inside), yet when fully assembled, they seem so solid and heavy. You could do that, and take the remains down in an elevator. I'd still encourage you to salvage the feeds and lnbs though...