CAD DESIGN FOR DUCTWORK

I'm looking for a CAD Designer for a project involving the design of a simple straight duct. The software I prefer to use is AutoCAD and I have exact measurements for the ductwork. I am looking for someone who is knowledgeable and experienced with AutoCAD as well as in the design of ductwork in general. The successful applicant should have a portfolio of related projects they have worked on in order to demonstrate their experience and capabilities. Additionally, I will need to confirm that they are willing and able to take on this project within our stipulated time frame and agree to a reasonable cost. I look forward to finding the right person for the job.