Firstly, I'm unsure if this belongs here or in electrical engineering, but I decided on here incase anyone else has attempted a similar thing.
I've had a raspberry pi and an old wooden chest lying around for a while, and I've decided to combine the two into a portable emulation device. Somewhere between a build and an art project. I've build towers before so I'm not a total noob, but I have almost no experience with the complex electrical side.
I've sorted all the parts from various spares, but I'm struggling to understand how I'm going to power it. The monitor I've salvaged is powered by a kettle lead, but the raspberry pi is just a 5v dc cable I believe. I don't want to have multiple cables running out of this thing, so I'm looking to somehow combine them. My initial thoughts are to use a PC PSU, so there can be a single kettle lead going into the box, and then use the PSU to power the pi, as well as any fans or hard drives that I add, but I have no idea if I can run the monitor through a PSU. To my knowledge, PSUs tend to have 5v and 12v outputs, and the screen will need the full 240. Should I somehow split the kettle lead input as it goes into the box, so that it feeds to the PSU and the monitor separately, or can I run everything through the PSU?
Apoligies for rambling, I just want to know if this is going to have any chance of working before I start. Also, I know what I'm doing is not efficient and I could just buy a laptop, but it's about the aesthetic and using up parts I have lying around. Thanks for your help.