(Actual) Mineshaft Elevators

This has little to do with "Mineshaft" structures already in Minecraft, and more to do with the players ability to ascend and descend quickly and reliably. [An example picture is at the bottom]

Why?

Because of the Caves and Cliffs Updates, as players, more emphasis will be on our z-axis than ever before. After seeing the new ore generation elevations it was made abundantly clear that up is just as important as down. [The picture provided by Mojang is at the bottom] 

Disclaimer - Subject to change in further snapshots or updates after 2/17/21 or Snapshot 21W07A

If the game assumes we'd have reason to mine into mountains for Emeralds, and more importantly Iron, we'd still want to get diamonds, gold and Redstone. Which means mountain bases/homes would be almost 256 blocks away from those resources. In the current version (1.16.5) going into caves and mines is already quite a trek, but now even digging straight up or down would be INCREDIBLY more tedious, slow, and dangerous. 

Which is why I propose Mineshaft Elevators. It'd be cool if they used copper in some way, but basically, a mechanical lift that can bring us up and down from our base to our mines, like in real life. (I've been in one to get into just a normal cave, they go down really deep). This could lead to mining camps at the bottom of the shaft, where we store items for a later hoist up to our base/surface with less hassle, while letting us stay down there prolonged periods.

New Ore Generation and Height

Essentially This