Have you ever installed a ceiling fan by yourself? It's a royal pain in the butt. They're good enough to give it extra long wiring so you can wire it up with the motor sitting on top of a ladder. But then you have to pull the wiring up, line up rods and holes and shove pins into place with one hand while holding up the rather heavy motor and case assembly with the other hand, all while standing on a ladder that you can't hold on to. It was not fun. Seriously, get another ladder and a friend if you have to install one.
I also got some lath torn down and some dry wall installed.