Just finished building mine, everything went well except I noticed one of the rbg leds under the pcb was broken from the factory or shipping, no biggie since I have the SE and you can't really tell with the diffuser case. Should be the same for the bezel case.
I'll hunt for m5x8 screws tomorrow.
FN+Esc for the under pcb RBG led modes
FN+B for switch led modes, FN+V to turn on/off switch leds
The FN key is above the right arrow key.
Very happy overall, the SE is awesome.
Thanks for another successful GB Ivan.