Tried to build exactly this a while ago, but it wasn't precise enough for my liking, since I was hoping to make it as small as possible. The numbers slowly drift from their position, and that was just a wee bit too annoying for me to deal with.
Yes, it is very fiddely and overcomplicated. To avoid the numbers from drifting you would need the precise degree in rotation, which Create doesn't make too easy to do. Glad i inspired you though!
Not sure, i don't think elevators has a lot of variation, and lifts/elevators/stairs have already been in previous videos. What might come in a distant future is traps though.