For the most part, we're comfortable with people going off of the wiki's for low to mid-level gear but do want players to check in with us for what gear we feel is reasonable for characters to have (we've outlined some of this information in the FAQ). However, ultimate gear will need to be custom made/altered regardless of what anyone wants it to do.
We do ask that you keep in mind that the shop The Special Stockcarries accessories and the mun has a list of items for sale at any given time. We've discussed with that mun all of the accessories we are comfortable being in Vivi's shop at any given time and outlined to her how rare or common each item would be. So! If you're looking for a little extra character interaction to accompany your attempted purchase we'd be glad to see it!