I already seen this video, I am not saying this is bad wiring method at all 
I understand now for the audio, thanks
In my case I have a "template shell" with all the work already done to fit the motherboard without trouble. When starting a now build I buy at least 2 shells at the same time just in case. Seeing the work you put on all your project, you really should consider to get a CNC milling machine, it really ease the work plus you will be able to make PCB to help you with case modifications, cable management, switches fitting and far other things (trust me, it like 3D printing, once you're in, it a pleasure)
However , you made a great work for a impressive result, once again Thanks for sharing this
I understand now for the audio, thanks
In my case I have a "template shell" with all the work already done to fit the motherboard without trouble. When starting a now build I buy at least 2 shells at the same time just in case. Seeing the work you put on all your project, you really should consider to get a CNC milling machine, it really ease the work plus you will be able to make PCB to help you with case modifications, cable management, switches fitting and far other things (trust me, it like 3D printing, once you're in, it a pleasure)
However , you made a great work for a impressive result, once again Thanks for sharing this