For your consideration is an O Scale Oil Facility, use it in your diesel shop, steam service facility, or an oil dealer. 3D printed, Unit comes with tank, tank supports and perimeter wall. Ready for you to paint and detail with valves, piping, hoses, pumps or whatever you are modeling. Model may need some final sanding depending on your preferences. 

The outside wall measures 5.5 " L x 3.5" W, the tank itself is 3.9" L x 2" W x 2.05" T. 

I can adjust the measurements to fit your needs if needed, send me a message with what dimensions your looking for.