Okay, that one little spot you showed on the blue car in front of the rear wheel...... If it turns out like I'm thinking it will, there will be at least three separate layers of sheet metal to replace behind the spot you see. If you're lucky it just might not include the rocker panel which is another several layers. All of these layers are independent and placement of them is critical for strength and window bracket mounting points and the like. Best case and it's only the first 3 layers - you have to open the entire outer shell to access the inner parts as well as coming from the inside out. Go look at some of the thread about "his name is Dennis" or something like that to get an idea what a can of worms you can get into.. Being you're in California you may have a lot better luck than what many of us are used to, but there's no guarantees of that either. Good luck whichever way you jump.
okay that makes more sense, I'm not 100% clear on how panels are replaced I've only see the welders at the shipyard I worked at replace random things like brace plates. I assumed it would be easy.
yeah whatever, its pointless to talk about it before even taking a look.