User blog comment:FairyRaven/Fairy Tail Chapter 352: The Flame's Voice, Review and Commentary/@comment-16214733-20130920113952/@comment-7418318-20130920115758

With her thinking about being unable to use Amadura Fairy during the Tenrou Island arc because it wasn't repaired yet we can savely say that there are at least some armors in her arsenal of which she has only a single one.

And with the limited storage space she was refering to at other times, I doubt she'd have too many duplicates stored up, since that would severely limit her flexibility. And who would want to requip into the same armor the enemy was just able to destroy anyway?

Though I guess she might have a backup or two of her "everyday armor" (maybe with slight variations in it's looks), since she wears that one as if it was regular clothing.