Export QGIS Trees to DWG

I have a QGIS project that maps every tree on site together with its Tree Number, Structural Root Zone (SRZ) and Nominal Root Zone (NRZ). I need all of that information moved into AutoCAD so the architects can see it in their own drawing.

Here is exactly what I need:
• Extract the tree points, their identifying numbers, plus the SRZ and NRZ outlines from my QGIS file.
• Convert and deliver it as a single DWG that opens at the correct scale.
• Overlay-register it to the base DWG the architects supplied (I will send you the file as soon as we start).
• Keep everything on one layer—I don’t require separate layers this time.
• Confirm or advise on the most suitable coordinate system before export; I’m not sure which CRS the architects used.

Acceptance criteria: when I open the returned DWG, tree symbols and text come in cleanly, SRZ/NRZ geometry aligns perfectly with the architects’ model space, and the drawing units match their scale without extra rescaling.

Turnaround is urgent, so please let me know how quickly you can produce the final DWG once I supply both source files.