Unfortunately I cannot help either as I am on the left coast (Washington state), however having done this recently for the first time myself I can offer some advice. Think of the car like a model car, each part goes in a general location and has to meet with the other panels that connect to it. You didn't say, but I am going to make the assumption that you haven't removed the old panels yet. Remove 1 panel at a time and do so by cutting it off 1-2 inches (or more) away from where it connects to the other panels. Then carefully drill out the spot welds or in some cases grind them out. Once you have the old removed and all remnants of it, test fit the new one. You can make adjustments at this point to how it fits and lines up. Lots of clamps, Clecos, etc will be a big help. Understand that these were not precision build cars from the beginning and years of use and abuse took their toll so a new panel may not fit as you would think it should (however it might). Once you are happy with the fit, tack weld it (weld it in a fashion that can be removed/ground, etc just in case). You need to check, recheck and repeat many times until you are absolutely sure it fits or fits as good as it can/will. It is just metal and it can be manipulated as can the original panels.
I did both rear quarters at the same time and didn't weld them in until I had fit the trunk lid, rear valance and bumper. The rear valance is a VERY important issue, you have to make sure it fits before welding everything up. The quarters can only go where they are designed for, however there is a little adjustment and you can manipulate several aspects through cutting, grinding and welding. It isn't rocket science but I completely get how scary it is. Take is very slow, think through what you are doing or about to do, look at every aspect before welding.
Good luck
