modification for privacy at a core level

So I want to remove the cameras and microphones and also wanted to replace the chip set. I could also just buy a used note 4 motherboard, but I wanted to modify the chipset at a core level. I am looking for tools to remove parts and then a reference to what equipment I need to redo / modify the chip core information. I am not a “bad guy” and actually help vulnerable people for a living. I am not trying to hide but like my privacy and dont need google or Canada’s New Czar ( Justin Trudeau ) getting ahold of my clients private info through my correspondence.

Thank you