He said he will want OWB and he would like to compete but that will be later on when ammo goes back down in price. For now just every day carry.
You might check with the following suppliers for a daily OWB holster for the Canik. Make sure the offerings will fit (or they can tweak to fit for you) the longer barrel/slide of the competition model.
https://www.vedderholsters.com/lightdraw/ (they have one for the TP9SA, but if they could tweak for you to fit the SFX, this would be my choice for an OWB for the Canik)
https://www.crossbreedholsters.com/shop-all/snapslide-owb-holster.html (NOT my preferred style, but might be find for your situation)
Good luck.