Been thinking about construction of this project, decided to make it layered, bottom layer to house the system switches, cable tidy and power in area; layer 2 the Jaguar, layer 3 N64, etc.
Layer 1
Layer 2
Connection to the two is by pin headers, which is for the A/V and also grounding for the system selection. All the consoles can have the voltage line, the grounding will be the switch to power the system.
Not secured the bank of switches in place yet, might see if can extend it from 5 to 8 if can.
System is modular and easy to take apart.
Going to test this and then do same for N64 section, when working fine i'll make another video to show project progress.