I would be quite a bit more aggressive in my selection of an antenna. A larger all channel antenna such as the Winegard HD7084P would be my choice. I believe you'll need the added gain for both the Low-VHF and the UHF signals. Also, I would opt for a preamp with better noise performance, I'm thinking of the Antennas Direct PA-18.
A satellite J-pole is a bit small if not guyed, also, the antenna needs to be high enough to 'see' over, not through the roof. Can you chimney or gable mount?
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