Precast Yard Layout Sketch

I need a clean, easy-to-read sketch that shows the overall commercial precast yard in basic layout form. The one critical element is that the area where we will be blasting the panels must be clearly marked... (Budget: $30 - $250 AUD, Jobs: 2D Drafting, 3D Design, 3D Modelling, AutoCAD, Building Architecture, Building Design, CAD/CAM, Construction Management, Drafting, SketchUp)