As for the possible followup project. I will only do this if there is a change of a moderate opportunity to sell them since there would be direct manufacture costs involved. The case will be entirely custom built. It’s main difference apart from appearance will be hard wiring and a built in display. I’ll still provide the HDMI and Audio outputs as options.

I may stay with the PS1/2 controller ports as the primary option with the USB alternative. This has obvious advantages of a pre built controller and the option for an arcade control panel to be plugged in. I’ll only configure for the PS1/2 controller since I won’t know the variations that might come its way.

It’s still food for thought but I offer it up for possible interest down the track.