A premium system would place the antenna(s) above tree top level. So a tower or telescoping mast may be needed. If you don't have tall trees close in, a tripod and standard 10' TV antenna mast section mounted at the roof peak may do well. Your report was based on 30' AGL so I'm assuming you'll mount at that level or higher.
http://www.3starinc.com/telescopic_masts_and_more.html
http://www.3starinc.com/rohn_25g_towers.html
A single fixed aim High-VHF antenna pointed at WOWK, real CH-13, 190° compass takes care of the one VHF signal. An Antennacraft Y10713 or Winegard YA1713 would be the options I would choose from.
http://www.antennacraft.net/Antennas/AntennasVHF.html
http://www.winegarddirect.com/viewit...13%29&p=YA1713
A High gain directional UHF antenna such as the Antennas Direct 91XG mounted on a rotator gives you access to the UHF signals. A premium rotator such as the HyGain AR-40 is worth considering, though a consumer grade NTE U-106 and TB-105 thrust bearing is also an option.
http://www.antennasdirect.com/store/...V_Antenna.html
http://www.hy-gain.com/Product.php?productid=AR-40
http://www.3starinc.com/antenna_rotors.html
The two antennas would combine using a UVSJ close to the UHF antenna, then followed by an Antennas Direct CPA-19 preamp.
http://www.antennasdirect.com/store/..._combiner.html
http://www.antennasdirect.com/store/...ifier_kit.html
Of course, shop other retailers for best pricing.