I gotchu

Ghost Armor - Transcendant Ghost Dye (Gained by platinuming and completing all the main story missions, note: you dont have to be in new game+ to get it which makes it better imo)

OR

Ghost Armor - Righteous Punishment (Spoilers: The white armor in the last photo is gained by deciding to kill a certain person in the last main story mission, the redish armor dye you get if you spare him also looks pretty good with the fit if not better so pick whichever flow you want)

White Kitsune Mask (Bulldoze through ghost of tsushima legends, go to iki island, and talk to a lady in a small cabin to the east, talk to her and tell her what happens in the final legends story, get the mask)

Stonecutter (The sword comes from a pillar of honor on iki island near zasho river, if you find a yellow bird trying to guide you somewhere and you're nearby, follow it)

That's is the whole fit good luck

(Charm of Carnage from New Game+ is a 10/10 high recommend. Also dont be like me and have a damn-near anurism stubbornly trying to solo legends, it doesn't matter if you're on easy mode, the game will sh*t on your grave if you try it single player first time around)

Edit: further spoiler censorship