I was able to order some parts for the build after a long pause on the project. The high power CREE LED, power supply and DC fan came in. I did go with a 5v fan instead of a higher voltage one. I thought since I have a Pi 3 running on 5 volt power I could just piggy back the fan on that supply. At the moment for testing the fan is running off the power supply and the Meanwell supply is directly wired to a extension cord. Once I get the base printed I will look at wiring up a proper fuse, PC power socket and power switch.

The LED is mounted to the heat sink with Arctic Silver 2 part epoxy. The dimming is working though my 100k pot seems to top out at 80k so I will need to grab a better one. It may just be I grabbed the wrong one from the bin.... Below are three photos of the current setup, I tried to keep the camera on the same settings to show the brightness. It is a new level for sure and I dare not look at it directly at full power.