I feel for you. My parents had me install them in their bedrooms. Beds in the way of the ladder, kicking off the shoes to half-stand on the mattresses, etc.
Hope you marked the blades if you took them off.
Nowadays they're self aligning with shims and counterweights, so it's a lot easier. The motor floats inside the main housing. I use heat-shrinkable tuning for the electrical connections. It's more tedious than challenging.
