RCC Slab & Beam Design

I am at the stage of pouring a 3,600 sq ft RCC lantern-style slab together with its supporting beams for a brand-new home. Permits are already approved; what I still need are complete architectural and structural drawings that will let my contractor cast confidently and without delays... (Budget: ₹600 - ₹1500 INR, Jobs: AutoCAD, Building Architecture, Building Design, Building Information Modeling, Civil Engineering, Construction Management, Site Inspection, Structural Engineering)