The polypropylene “truck rope” secured to one of our habitats, then run through a pulley secured to the destination tree, (or structure) allows for easily lifting the box to the location and holding it in place while mounting it. This is the same rope, pulley and hardware combination we use when installing. It’s tested many times over, and the pulley is an 100% metal type with nickel coating for anti-corrosion. Lifting an owl house with the rope and pulley method works fine with 1 person installing, but having 2 adds for a higher degree of safety. We’ve routinely re-used this combination for years.