When you click on the links in your TV Fool report you can see the path profile each signal travels to arrive at your location. For example, the path profile of K22FR:
http://www.tvfool.com/?option=com_wr...dALLTV%26n%3d7 which shows a hill just south of your location.
Because the hill obstructs your 'view' of the signals south of you, I believe you'll need to use a roof or tower mounted antenna to see the major networks. You can certainly try in the attic though.
I would opt for a roof mounted antenna, using a 3' or 5' tripod and 10' mast section. I'd use a deep fringe antenna such as the Winegard HD7698P together with an Antennas Direct CPA-18. Aiming at about 183° I'd expect to see the networks you list plus others.
http://www.3starinc.com/
http://www.antennasdirect.com/
http://www.winegarddirect.com/
http://www.amazon.com/
http://www.rabbitears.info/market.php