Convert Duct Sketches to CAD

I have two hand-sketched ductwork layouts that now need to become clean, professionally drafted CAD drawings. Each drawing should be redrawn to 1 : 100 scale, include all the existing dimensions shown... (Budget: $30 - $250 AUD, Jobs: 2D Drafting, AutoCAD, CAD / SolidWorks, CAD/CAM, Drafting, Engineering Drawing, Graphic Design, PDF)