I haven’t built one personally but I was really close to a while back and had done a ton of research on it. The wiring is extremely simple, you can find diagrams online from others who have DIY’ed them. If you have the skills to build the case, you’ll be fine figuring out the wiring.
If you end up making those cases, post them up, I bet it would be really neat, and probably have a line of people wanting to buy them from you 