If anybody fancies the solution (as did I) put forth by @SVDB, but would rather not cut/solder/splice wires - then the below bits will allow you to make a patch cable that converts from the Noctua PWM to the Control Board header.
The header is a JST MX 1.25 found here.
The Noctua PWM male connector is found here.
A SN-28B crimping tool will help the cause.
Here is a picture of the final cable:
This makes the replacement ridiculously simple along with the @SVDB bracket.
- Remove the back cover
- Unplug the stock fan
- Plugin the patch cable
- Install bracket with fan
- Re-install the back cover
Thanks again to @SVDB for the fantastic mod!