new HVAC package unit designed

I am looking for someone to design a new HVAC package unit for a project. The desired cooling capacity must be more than 5 tons, the primary function should be both heating and cooling, and I require a high efficiency unit. This is a ground-up project and the ideal candidate will have a strong background in designing, engineering, and installing HVAC systems. If you have what it takes, I look forward to working with you.