I’m not using a tent. It’s a drywalled room in the basement with 7-1/2’ ceiling. The tricky part is having the room to fasten it up there while keeping it as tight to the ceiling as possible. I really like the idea of using a commercial vibration isolator but at $100 a pop (or more), they’re an expensive way to eliminate an annoyance.
Being honest, I’d really rather not use bungee cords. I’ve seen them deteriorate, and as you point out the stretch can be an issue even when trying to get the fan up there. I will be walking under this thing from time to time and knowing my luck that’d be just the time one would break.