Thanks to @Wesk for scanning this bad boy. I ended up re-modelling it from scratch (polygons arent kind to Fusion/Solidworks), so will share the files here for anyone who wants it, since I'm using it in my Retro Lite CM5 project.
Pinout of the fan is as follows (assuming a face down connector from left to right).
1) +5V
2) Tach
3) GND
4) PWM
Pinout of the fan is as follows (assuming a face down connector from left to right).
1) +5V
2) Tach
3) GND
4) PWM