And before ZID (if I can figure out a way to get it and IND up at the same time) you could probably hear some on ZOB...though there may be a bit of a break between the two.
However, I'm not sure reception is clear enough on the terminal side to make a feed of it. All I've heard is approach and departure, and it's very faint. Therefore, tower would probably be pretty difficult to hear. Plus someone would probably need to donate equipment for this if it were clear enough, as most people only have the equipment to run one feed.