No.
Right now, I'm finishing the last of what I consider to be "the tedious part". As far as I know, these are the last three issues:
1. Perfecting Elevator detection of interiors / terrain.
2. Enhancing the way Elevators handle collision with vehicles and players.
3. (Perhaps) making it so that an Elevator can transport a player through liquid without the player floating.
Then, I still have a decent amount of work to do on "the not-so-tedious part":
1. Coding the logic that controls how the Elevator handles floor requests.
2. Creating Elevator usage GUIs and the functions that make them work.
3. Adding the ability to name floors and (perhaps) have Elevators with floors of different heights.
4. Adding the ability to save and load Elevators.
Finally, I'll need to do epic amounts of testing to insure that all this code works the way I want it to.
So, the Elevators, while certainly usable at this point, are not done. You can see from this list all the work I have yet to do.