Commercial HVAC & Ducting Design for Office Spaces -- 2

I need an HVAC & Ducting layout design for office spaces in a commercial building under 1500 sq ft.

Requirements:
- Detailed HVAC layout design - CAD Version needed
- CFM (Cubic Feet per Minute) calculations
- Heat load calculations
- Machine recommendation (India)

Ideal Skills and Experience:
- HVAC design expertise
- Experience with commercial office spaces
- Proficiency in load calculation software

I will provide the floor design CAD file