Dude, I already said that i didn't want to derail the topic any further!
They can simply wage that war with KF-16s, FA-50s and F-15Ks since there's nothing the North can bring against them. Yes, an indigenous high performing aircraft is a net positive but unless they're planning to take on China or Japan; they're not in a life or death situation as Turkey is due to being encircled by a circle of war and threat. Turkey has Ukraine & Russia to the North and East Med and the friggin Middle East to the South-Southwest. Every country surrounding Turkey is arming like crazy while Turkey decreases its investments and becomes a "prototype heaven".
Turkey is not in NATO to get protection against others, Turkey is in NATO to not get attacked or divided by them. They don't do jack sh.t for Turkey's interests; to the point when they rarely don't do something against Turkey, in a frenzy Turkish politicians and think-tankers alike all want to realign with the West again as if they've changed! (As if they were an abusing boyfriend/girlfriend - I can change him/her!
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As long as the South Koreans keep their cool and don't do something crazy to receive legit threats from their other neighbours, they can bomb the f out of the North (in this case, the only legitimate threats from the North are obviously the nukes and those huge artillery barrages against heavily populated areas within 50 kms of the border - you don't need advanced 4++ gen jets with decreased-RCS (not LO or VLO!) for this purpose...).