this Blend Project includes the Harvester vehicle 3d model + the hangar 3d model and some minor props with all their respective materials and textures plus render settings:
 it features multiple scenes with different lighting schemes: overcast, sunlight, moonlight, artificial interior light

• the objects geometry still have all the modifiers stack for easy editing
• materials features a procedural node setup, with procedural masks that can be easily modified
• I also set an automatic node system that makes the masks and the texture coordinates varies when duplicating the object (works with instances as well)
  
  
  

the vehicle itself has roughly 600k tris (with instancing)
the hangar has roughly 300k tris (with instancing)