Raft Foundation Drainage Layout Drawing

I have previous drainage plans in DWG/PDF and now need a dedicated shop drawing that zeroes-in on the raft foundation’s drainage. The core of the task is a clear, fully-dimensioned detailed drainage layout that meets recognised international standards (e.g., BS EN or equivalent)... (Budget: $250 - $750 USD, Jobs: 3D CAD, AutoCAD, Building Architecture, Building Information Modeling, CAD/CAM, Drafting, Engineering Drawing, Structural Engineering)