Festival Octagon Tent CAD

I have already sketched an event-grade tent for use at a festival and now need the concept turned into fully detailed CAD files. The structure is a 30-foot (9.14 m) diameter octagon framed with 1.5-inch ECT tubing and skinned in shade cloth... (Budget: $250 - $750 USD, Jobs: 2D Drafting, 3D Modelling, 3D Rendering, AutoCAD, CAD / SolidWorks, CAD/CAM, Fusion 360, Mechanical Engineering)