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I do understand, but it isn't official and you're basically asking for those who will be interested. It isn't something that can be discussed as a topic and it isn't an official work. It isn't officially recognised as a Bulbagarden project either.
A blog, or perhaps even a social group, is more appropriate.
The Mawile's personality can be whatever you want it to be. I'm not picky. xP (Although if you'd rather I outline one, just gimme a yell.) Gender can be male, if that's okay. And that's fine. Actually sounds like a pretty cool plot point, too.