It's less of a difficulty than you think. I worked at a TV station and our old tower that was in a farmer's field was replaced by one in town and we all watched the tower get knocked down. Took about 2 minutes. Just cut the guide cables and it falls.
The part that took a while was figuring out what to cut in what order so that no one got hurt. But if you're just there to steal it, you're probably a lot less worried about that.