Webb, Having bent my share of metal such as aluminum for window and siding jobs, plus a bit of Galvanized for some of my own duct jobs, I still would not feel like I have enough experience to do ducts in a precision production setting for HVAC. I am sure I would get the hang of it, but hope there is someone more experienced that will be a good fit for your company.
Good luck to your company in finding a good fabricator and to the future job holder.