Excuse me if this is already answered or not.
Just wanna ask where can i find Kyoto GateKeeper Clothes? Just curious cause Im on my way to kyoto.

Well if your talking about the ones exactly like what the npc guards wear, then you obtain/make them as part of the main questline just before benkei's dungeon. (the yellow spire)

That quest start by NPC Ensuke after u finish all member's quest in Tokyo (clear anka, shinoda, well ... ), u must find some item and give it for Ensuka for get new guard set. U must wear new set for go a new dungeon.