The test images look good!
Sounds potentially handy. Is this one you built, or is it available as a finished product or kit somewhere?
Hopefully, but we don’t know for sure, much less when it might happen:
Sofirn C01 host version
If you haven’t put a Yuji in a coin cell light like the Photon Freedom, it’s almost a must have, and it looks like this LED would also be a great choice. Maglite Mini incans are also very easy to put a 5mm LED in.
If you want to get really fancy, I believe you can send McGizmo an LED of your choice to install in a McGizmo Sapphire, although perhaps he still has some Yuji’s left.
If you want something in the middle, there is a Surefire A2 mod product that may or may not still be available called an “onion ring” that a CPF member makes. It holds 3 LED’s and has a potentiometer to adjust output.
And then, of course, 9x LED lights are easy to come by. They can usually be disassembled by removing the batteries and pressing the pill out of the front of the light.