Just got done with the pivotal test as to whether or not my idea of having a controller with built in video was going to work like I’d hoped. And it did! I’ve got the video signal line wired to the control ports I added to the base system, going to the SNES controller connector, through about 6 feet of shielded Play Station controller cable and into the screen!
Very happy that this worked as now I can start to build my first controller and get it functional. I’ll have most of tomorrow morning off so I’ll be using this time to get that rolling and hopefully have some more updates here shortly!