Commercial HVAC Load Calculation

I need a detailed set of heating- and cooling-load calculations for a new commercial building. You will be working from a complete, well-organised blueprint package in DWG/PDF, so room data extraction should be straightforward... (Budget: ₹750 - ₹1250 INR, Jobs: AutoCAD, CAD/CAM, Civil Engineering, Environmental Engineering, Excel, HVAC, Thermal Analysis)