Greetings Doug,
I'm glad to report a 30' and 50' tower aren't needed in your situation.
If you are just looking for ABC, CBS, NBC, PBS and FOX you have it pretty easy. A small J - pole mount and an Antennacraft HBU11k ought to do the trick in your situation.
http://www.solidsignal.com/pview.asp...t-%28hbu11k%29
Orientate HBU11 to magnetic heading 305 to receive Fort Wayne affiliates. Test antenna location with best clear shot in direction of transmitters for reliable reception before perminently mounting. While testing, do not split the signal. Run one single coax into one TV to confirm reception. Make sure to do a tuner scan in "broadcast" or "over the air" mode. After successful reception, then add distribution amp and start adding new leads to other TVs carefully monitoring for any reception problems.
Further, a preamp is not needed in your situation.
If you are going to run say, 75' of coax with the option to split up to 5 times, I would recommend a distribution amp. The channel master 3414 has a good reputation.
http://www.amazon.com/Channel-Master.../dp/B001PI09SE It is sold in 2-port, 4-port or 8-port options.
This is very nice plot for your locals for eastern Indiana. You could have this set up going for a lower cost than many. So far, looks like $75 plus coax expenses. You have line of sight to the local networks.
I have family in Richmond. Reception can be brutal there. Indianapolis isn't really an option there. Dayton can be done with a good roof mounted antenna if you aren't mired in the trees and Cincinnati requires a bit more aggressive antenna on a tower. I've never seen so many 50 - 75' towers in one town as I did there!
Best of luck.