NES Raspberry Pi 4 Mount - Conversion kit and PowerBlock Mount
I wanted something to mount raspberry pi with inside the original NES console case. I found some models, but not a complete kit that fits my needs. I've taken two sources (look at remix sources section) and modified a few of them. I also created the mount for holding raspberry pi, and created the HDMI/USB port myself but using one model to fill in the side holes of NES. Feel free to modify them if you need to move holes around or whatever. The front USB ports I modified to be bigger as I didn't want to solder USB ports. I instead glued USB extenders inside the front ports for simplicity.
This is a complete conversion kit (if you want to replace the lid of NES, I also have another object for that - https://www.thingiverse.com/thing:6248599). The caveat is that it require you to dremel the rear port area out to be replaced with this kit.