Blunce,
Nice job on the mustang, and I must admit that I do not recall seeing such a paint scheme before, but I definitely like it! As someone else commented, I also do not weather my kits nearly to the level that you have, but once again, it looks great.
TryintoModel,
I also noticed that revell-monogram changed their way of doing business on replacement parts a few years ago. The one time that I had a problem, I simply called an 800 number, told them what was missing, and the replacement parts arrived in less than a week. I think that now there is a charge for shipping, at a minimum, and I do not know how fast your parts will arrive. All change is supposed to be good right? Anyway, I would probably suggest going the Squadron route, as you may like their thin windows better than the stock parts from the box, and if you are ordering stuff from them anyway, the shipping cost will be part of your order already.