If it was me i would do all that resign stuff like sean said, then after i resign it i would cut in half resign the inside, then i would do what adam did to make his A.R. I would take silicon and apply to the outside of both halfs, make an exo to hold the silicon so it dosnt mess up its shape or warp. Then MAKE SOME PLASITC!!! pour plastic into the inside!!! then BAM seal the two halfs paint and away you go!. If you wanted to add electronics, make sure you have somthing inside the mold to stop the spread of plastic where you want the electronics to go. Your smart and can prob figure that stuff out. If not there are some vids on here and youtube that adam has put up that talk about that stuff. Good luck it looks awsome so far