Residential HVAC Design Calculations

I am looking for a complete HVAC design package for a residential property that will run on a central air-conditioning system capable of both heating and cooling. I already have the architectural plans... (Budget: ₹1500 - ₹12500 INR, Jobs: Air Conditioning, AutoCAD, Building Architecture, CAD/CAM, Civil Engineering, Heating Systems, HVAC, Revit)