No on the antenna, yes on the amp.
I'd go with a ClearStream 5 by itself aimed at Quincy or perhaps, just a bit to the north from that line (yes, there is a reason). It should pick up the two local UHF stations just fine as it happens to act almost like an omni on UHF. Add the Juice pre-amplifier if needed (probably).
PBS out of IA would probably require the addition of a high-gain UHF antenna.