With added radial fan MOD....
Can you send me stl file? email@example.com
I didn't keep it, sorry.
How you modified this mount for right side of extruder? Mirrored print? Duct is in axis with hotend?
At first I tried mirroring but due to unknown reason Cura did not slice it properly and made some holes and unnecessary empty spaces so I had to tweak it a little in the Meshmixer..