I just completed my build of the WiiVision.
It runs both GameCube and Wii games beautifully. I relocated the MX chip and the CR2032 battery is tucked away underneath the USB breakout board. This is my first portable and I tried to keep the wiring neat and solder points clean. But there's still a lot of room for improvement.
In addition to the standard components, I designed and printed various wire guides and designed a Wii breakout board, inspired by and based on, loopj's Wii breakout board. I want to thank all the people on this forum who have shared their knowledge and experience. In particular, I want to thank Gman and Aurelio for their guidance and support.