Steel Livestock Shed Structural Design

I need a complete structural design package for a farm shed that will house livestock. The frame and connections must be entirely in steel, and the roof profile is a classic gable. Good airflow, clear internal spans for animal movement, and durability against corrosion are essential... (Budget: ₹1500 - ₹12500 INR, Jobs: AutoCAD, Building Architecture, Building Design, Building Information Modeling, Civil Engineering, Construction Management, Engineering Drawing, Structural Engineering)