So I've bought myself an empty Saberforge Sentinel hilt. I'd love to get a basic electronics kit to put into it, but I have NO idea where to start with that. The hilt is a little thin in the middle so I doubt I can slap something large in there, but does anyone have any ideas about what electronic kit I could get to fit this saber? Light only is an option, but anything goes. Any help is appreciated (I have no idea where I can ask people about this sort of thing, 100% new in the saber-life.)