(Final Fantasy X) Yuna and Rikku's alt. costumes

C&P question from forum #220324.

I'm interested in knowing if we want to make costume chartags for Yuna's Gunner (post #266721) and Songstress (post #269342) outfits, along with Rikku's Thief (post #257208) outfit. Or do we want to just stick to using official alternate costume for them?

Thief (Final Fantasy) & Gunner (Final Fantasy) already exist, so populate in that style & replace alternate costume -> official alternate costume IMHO