Ok, I see. If you are at 5th dan in ATA or ITF, I think you can apply for up to 4th dan via the US National Dan Program. That doesn't give you Kukkiwon cert, only USNDP. Having USNDP cert will get you all WTF-competition rights as Kukki, including right to be a coach; but without Kukki you can't become an instructor. So, those are your choices for that route: 4th dan USNDP, you can compete and coach in any WTF-sanctioned event, but not be certified instructor. Total cost should be about $50 or $75 - somewhat nominal.