I don't have any experience doing this to a camper shell, however...I have done stuff like this on boats for that "clean flush mounted" appearance. I would check out Rigid Industries website. They are expensive but have pretty much exactly what you need. Flush mounts and all! I think its a great idea, and I wanted to do something similar on mine but I just ended up buying a small toy hauler because I was mainly going to use the camper shell when I went dirtbike riding. As for wiring... a 4x4 sPOD all the way. Basically you just run all of the lights to an outside box, and only one wire has to go through your firewall! Pretty sweet setup I love mine. Comes with 6 switches and a universal bezel that fits perfectly in the first and most narrow overhead storage thingy above the console.