Do yourself (and perhaps your body man) a huge favor and either get and have repaired used OEM fenders or get NOS GM ones. It's the "pay me now or pay me later" kinda deal.
Read the archives and you will find out all the people who got Asian made sheet metal and regretted it. The stuff is reported to be so wavy that you will end up spending WAY more for body work than you would have for GM fenders. That is if you can even get the Asian ones to fit!
And don't except paying retail for GM fenders. Either approach your favorite dealer and try and make a deal for wholesale (like I did), or go to a body shop you trust, have them order them and offer them some kind of markup to make it worth their while. The cool thing here is that GM will pick up the shipping costs for you!
You may also hear about GM Parts Direct. Despite the name - they are NOT part of GM. While their initial prices look very good - the shipping will more than make up for it.
2012 Mustang Boss 302 #1918, Competition Orange. FGF replacement 2006 Mustang V6 Pony, Vista Blue. Factory ordered. 2019 BMW X3 (Titled to the wife, but I'm always driving it for her. So I'm claiming it) Old projects, gone but not forgotten: 1967 FB 400, original CA car. After 22 years of work, trashed by the guy who was supposed to paint it. I had to sell it. 1980 Turbo Trans Am 1970 Mustang fastback, 351C 4Bbl, auto 1988 Mustang GT, 5 speed 1983 F-150 4x4, built 302 1994 Chevy K2500 HD 4x4, 454 TBI