Exterior Concrete Basement Stairs Design

I am preparing to cut an exterior stairwell down to my basement floor and want a set of stamped drawings that a Winnipeg building inspector will sign off on. Scope • 4 ft-wide reinforced concrete stairs, smooth finish, dropping roughly 6 ft from existing grade to the slab... (Budget: $300 - $500 CAD, Jobs: 3D Design, 3D Drafting, 3D Rendering, Architectural Engineering, Building Architecture, Civil Engineering, Home Design)