If you are also buying the receivers, make sure you plug them in there and verify they still have good unit id's! I got screwed buying one a few years ago with a blanked id due to a dead battery. Only paid $20, but I sure could have used the $20 somewhere else.
Be sure and read the bidding conditions for certification.
Wow, someone can probably name that dish, just from the one picture!
"Many are using them for great projects like gazebos"... say it ain't so.