Heres something I know a few people wanted, technically a model swap but i've made sure it works and added a some new alts for them. They replace the Vampire Outfit, Cybernetic Suit and High-Tech Armour by default but you should be able to rename their folders to any Mii outfit you want using this list. I'm not sure if they are wifi safe, they SHOULD be though its not like you can choose Miis on for glory anyway.
Okay, so I encountered a little issue after assigning the enemy alts to the Mii Fighter's default appearance. The models show up fine in game, but for some reason the CSS portrait and the little Mii Fighter preview image when you select the Mii Fighter is just a empty/white space despite all other portraits working fine, even in the custom menu. Any ideas on how this occurred?