Here are some things I would like for there to be in Junk Jack:
1. lifts/elevators - easier to move up and down like in deep mineshafts (could be made with the electronics bench).
2. markers - place some markers on the map if we want to come there later. It would save time.
3. minecarts - like #1 but for horizontal tunnels, fast transportation, and roller coasters

4. A shop with in-game money like coins (you can find them in chests or crates).