Hi. I don't know much about JK flares, even though I just recently bought a 2 door.
I have MCE Fenders on my TJ that I really like. I have seen them up close on a local JK and they look really nice. The prices, however, have gone through the roof since I bought my TJ fenders.
But, If your stock JK fender flares happen to be the painted version (Sahara) in a billet silver, I would be happy to get rid of those for you!