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There's no need for a large 7-51 combo such as the 7698. The only VHF station to the southeast, KBRR, is duplicated (except for local commercials) by KNRR making the very large VHF section of the 7698 unneeded.
What you do need is a deep-fringe UHF antenna that will "cover" the 40° spread of the Grand Forks and Fargo UHF stations and, if necessary, a simple VHF dipole for your two local VHF stations.
Based on this, the DB8e wouldn't be suggested. What I would suggest is two DB4e antennas placed vertically on the same mast with their reflectors just about touching, creating an 8-bay vertical stack. Flip the bottom antenna upside down, then combine the two antennas with a reversed splitter and two short coax cables. No rotor should be needed.
In the event the two VHF stations don't come in off the DB4e stack, (they probably will come in adequately), a simple VHF dipole can be added as needed. Details can be provided.
Your UHF signals need a pre-amplifier, the VHF signals don't although they can be readily amplified without causing trouble. Our PA18 amp is perfectly fine for this application. You really don't need the CPA19 although you can use it.
I'd recycle the old VHF antenna so it can be used for something else useful, like new beer cans.
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