Urgent 2D HVAC Layout Drafting

I have a single 30 m × 35 m room served by two identical AHUs, two identical chillers and two identical pumps, all feeding one supply and one return duct. The equipment datasheets are ready, and my base AutoCAD file already shows the room walls, doors, exact equipment positions, ceiling height restrictions and my suggested duct routes with air outlet locations.

Your task—starting immediately—is to turn that base file into a clean, final 2D top-view HVAC layout within the next 3–4 hours. The finished drawing must:

• keep the existing equipment positions exactly as marked;
• complete the supply and return duct network with sizes, air outlets and return grilles;
• add all piping routes and connection details between AHUs, chillers and pumps, respecting the ceiling limitations shown;
• stay well-layered and ready for printing, delivered as a .dwg plus a quick PDF plot.

I will hand over the reference .dwg and datasheets the moment we begin, so you can dive straight into drafting. Speed is critical—please accept only if you can dedicate the next few hours exclusively to this layout and send the finished file back within the stated window.