Star wars Gonk droid

I was tasked with creating a robot for my VTD class and I chose to create a gonk droid as it not overly complex and I was just using 3ds max for the second time
The Star wars Gonk droid environment seems to be based on what its being used for, but most of the time they are seen randomly in the back ground of the star wars movies.However they do have the purpose of being and electrical power supply or being a carrier for fuel.It is essentially a walking generator with low intelligence comparable of that of a mule.As I said it seems to be at random places,sometimes seen on desert planets,other times right night to star fighters refueling them.Sometimes they are just randomly walking around the ship like all droids of star wars seem to do. It doesnt seem to have a set enviroment it just goes where its told like a mule.