After watching MajorHardwares video on youtube and dowloading his files (https://www.thingiverse.com/thing:6735633), I realised didnt have a 140 or 120 mm fan, but I had a 92mm one, tinkercad and a bit of time .. so, here we are!
All I did was make the base have another set of holes closer to the center, the fan mounts have another set of holes, a smaller grill for a 92mm fan and finally a resized output air guide thing. As MajorHardware said, it is a 3D printed version of Noctua NV-FM1 .. just smaller.
I tried the printed bolts, but failed so found some random bolts to fit the M4 and M6 boltholes, yeah, they look dumb as heck but they work!
The author remixed this model.
Resized it down to take a 92mm fan as well as the other two sizes