I finished the elevator that i was talking about. It is located at my base( z 2577, y 72, z 4795) near some pixel art of a Super Mushrrom. I tested it out a few times and it seems to work fine with the server's lag but also once in a while it gets glitchy.
To use it you pretty much place 2 blocks down every time to get up and click a button. But i usally leave the blocks set up so you dont have to worry about that. To get up...you have to stand on top of the golden block and click the stone button infront of you.
If you have any questions about it just mail me in game or post reply.