Oh wow suddenly, looking at this again, this gave me nostalgia.
I remember, long ago, me and my cousin made a little hotel build with working elevators, using velocity events.
It had like, 50 floors, and we did a small server (non-rp) with all floors filled. It was similar except the floors were a simple baseplate-room-above-baseplate with an elevator connected on the side. Twas fun.