Composite Deck Engineering Plans

I’m ready to move from sketches to fully engineered drawings for a medium-sized composite deck (roughly 150–300 sq ft). While the structure will use composite boards, I want it to read visually as a traditional deck, so classic railing lines and post layouts should guide the design... (Budget: $250 - $750 USD, Jobs: 2D Drafting, AutoCAD, Building Architecture, Building Design, CAD/CAM, Drafting, Revit, Structural Engineering)