Zeppelin as a mobile base

With the grappling hooks and the umbrella as the main means of terrain traversal, I wish we could possess a full fledged zeppelin to act as both the ultimate realm traversal tool and, if possible and if a player so desires, as a mobile base.

Ideally, it would be a late mid game/early end game, optional quest introducing the player to either a crashed or abandoned zeppelin up for grab, with only the need to repair a couple components eventually. Although the method of introducing to the players doesn't necessarily have to be that, I feel like it would be an interesting way to introduce it. Also, of course, the engine would perhaps need to be fueled with coal and perhaps require maintenance every now and then, although it's just a wild idea.

Perhaps there could also be the possibility to expand the zeppelin gondola with researchable zeppelin specific parts just like any other tileset; be it it's height or width, up to a reasonable maximum, both to accommodate all appliances, storage and crafting stations but also to provide enough freedom to the player should they wish to make it feel homey or comfortable to "live" in. Even better if it could have an exterior catwalk and safety rails with or without deployable climbing rope/ladder if the possibly to freely move the zeppelin up and down is there. Additionally, being able to extend the rigid structure and gas bags to create a true sky behemoth would be awesome (Just like the Prydwen in Fallout 4).
And as a bonus, being able to summon it from anywhere would be great, using that same effect that NPCs have when they teleported to you.

We can see a lot of blimps and zeppelin throughout the game so I figured it wouldn't be unreasonable to believe the players could own one.