Need design and fabrication support for Belt Conveyor System

I am in need of design and fabrication support for a belt conveyor system. I need help making decisions about the size and dimensions, material selection, weight capacity, speed and efficiency of the components. I specifically prefer steel and aluminum extrusion profiles, but I am open to exploring other possibilities. The desired timeline for this project is less than one month. I am looking for a designer that is efficient and can develop a system quickly. All help is greatly appreciated.