I have a 3x3 opening that looks through the Kitchen and Den. I want to expand the look through to be the entire wall and create a breakfast bar. Do I need to tear down the Dry wall on the entire wall and reconstruct the wall? couldn't I just cut out the rest of the area that I want opened and then create the bar? I know there is electrical to be careful of and It will require relocating some outlets and a switch. Where do I start?