I would suggest you look at mast options. Safely putting an antenna at an elevation where it can intercept high quality signals and remain stable in tough conditions is worth a few dollars.
If you opt for a single antenna, you'll need a rotator. My personal experience with rotators has led me to find ways to avoid them if possible.
Here you can see the lengths I've gone to avoid using a rotator while trying to receive as many stations as possible. But my choice involves more, not less antennas.
The two antenna solution specifically addresses your situation where there are stations of interest in multiple directions. If you have more than one receiver, you will find this arrangement far more viewer friendly. You would find it frustrating to be the viewer who does not have control of which way the antenna is aimed.