Welcome to the forum, SOBTV:
Your signals are quite strong and in the same direction. You can mount an RCA ANT751 or a Winegard HD7694P antenna and aim it to 301 degrees magnetic with a pocket compass, not a smart phone compass.
You should be OK if there are no trees or other buildings in the signal path. You don't need an amp unless you are feeding more than one TV and the coax lines are very long.
The coax shield should be grounded with a grounding block that is connected to the house electrical system ground with 10 gauge copper wire for electrical safety and to reject interference. For further compliance with the electrical code (NEC), the mast should also be grounded in a similar manner to drain any buildup of static charge, but the system will not survive a direct strike.