I’m sure there are somewhere here, and plenty of people will happily guide you through any issues too, but it’s really super easy. If you can use hand file, tweezers, and solder two wire joints, you’re set! The host accepts 20mm drivers and 20mm led boards.
The biggest question mark is what driver and UI you want. Convoy’s 12 mode groups are nice for their flexibility.
The light comes pre assembled under the Ekoras brand - model R7. You could start there and swap the emitter later if you like. Everydaysurvivalgear
has a review and teardown of the light. Ekoras R7 Purple Swaggg