You have room, but you want to focus on one specific direction (e.g., Europe from the US East Coast) without building a massive rotatable tower. The Moxon Solution: Build a monoband Moxon for 40 meters . At 7 MHz, the Moxon is 17.6 feet wide and 5.6 feet tall. This is dramatically smaller than a 40m Yagi (which would need a 30+ foot boom). Mount it on a lightweight TV rotator on a 30-foot wooden pole. You now have a rotatable 40m beam at a fraction of the cost.
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The HF spectrum (3-30 MHz) is magical. It bounces off the ionosphere, circles the globe, and lets you chat with a retiree in New Zealand while drinking coffee in Ohio. But the antennas required are famously large. A full-wave loop on 40 meters stretches 140 feet. A 3-element Yagi for 20 meters spans over 20 feet on a 40-foot boom. You have room, but you want to focus
You cannot guess dimensions. The Moxon rectangle is precise. A 1% error in spacing destroys the front-to-back ratio. This is dramatically smaller than a 40m Yagi