Rancor Transport - ILM Challenge

Here's a Star Wars piece I would of entered to the ILM Art Department Challenge if I had caught wind of it in time. I've been loyal to the time frames the challenge established, this stage was 2 weeks, but I did a couple illustrations in one week. This stage of the challenge was:

Design two (2) new Star Wars vehicles within the aesthetic of Episodes IV – VI. They can be Rebel, Imperial, or utilitarian — your choice; anything from a giant starship to a land speeder. Be sure to finish your images by placing the vehicles within the context of an environment. We want to see the story — not the blueprints.

We are looking for uniqueness and personality of the form — yet still part of the Star Wars vernacular.
Functionality and believability. Does it look like it will work?
Again, the image must fit within Episodes IV – VI aesthetic.
Designs must be new submissions — you cannot reuse your submission from The Moment challenge.
Think about the story you are trying to tell with the image – i