[ADTech]

Assuming you have no trees, buildings, or other obstacles in either signal path:

DB4e with reflectors removed (drill out rivets) plus a VHF1 Retrofit kit mast mounted above the reflector-less DB4e. The result will be a bi-directional UHF/high VHF system that should adequately cover both your markets.

No low-VHF is needed. The only one on your chart is on channel 6 out of Miami which operates as a pseudo FM station but it will be gone in less than a year when all analog must end in the US.

You will need to get the antenna well up above the metal roof so as to avoid reflected signals that must travel across the roof. I usually suggest a 10' mast on either a gable, wall, or tripod mount