Almost done with this thing.. Just going to double check some measurements. I have ordered all the parts as far as I know. I will be making a PCB for a front access USB and Micro SD and a back PCB with video/audio output. I was thinking about going with component to allow it to be paired with a retro tink to crank it up to 4k one day.
My diodes were backwards...... Apparently I just don't understand the full concept. I had the negative bar on the ground side, but when I checked the manufacturer's data sheets the negative was facing away from the grounds.
Edit: Got this done later in the day. The PCBs showed up in the mail.