Design Low-Flow Centrifugal Pump

I need a centrifugal electric motor pump specifically designed for oil transfer in industrial machinery applications. I need it to fit a 205L oil drum (44 gallon). Dust and water tight screwed into the top of the drum with a rubber seal... (Budget: $30 - $250 AUD, Jobs: CAD / SolidWorks, Engineering, Engineering Drawing, Manufacturing Design, Manufacturing Engineering, Mechanical Design, Mechanical Engineering, Product Design, Product Development, Prototyping)