Commercial Ventilation Duct Layout Drafting

I need a clean, well-organised duct layout in AutoCAD for a commercial ventilation system. You will be working from a detailed floor plan that I will supply as soon as we start, so there is no guess-work... (Budget: €30 - €250 EUR, Jobs: 2D Drafting, 2D Drawing, 2D Layout, AutoCAD, Building Architecture, Building Design, CAD/CAM, Drafting, Engineering Drawing, Mechanical Engineering)