I may be jumping between parts of the project, but I want to test on real hardware.
I have the board about 14% routed at this point. I used KiCad's 3D view to make this rendering:
I love that feature. At this point we have decided on all specifications of the computer.
Our audio output is a 3.5mm audio jack with both right and left outputs. They are connected via an LM358 to two FPGA pins.
The video output is a VGA output connected to the FPGA, which has 11-bit color. The video resolution is controlled by the FPGA.