Ok I give this idea to people a lot lol, but so far everyone who asks looks like they could be good as a person from the show.
For you I recommend Toph.
HOw dare thee! Since when does 'chunky' equal not being able to get 'sexy' ?! You look good to me so meh If ya wanna get sexy with it, then do so. It's all about personality and appeal anyways right.
Anywho I think that Re-l Mayer from Ergo Proxy could be cool and she's marjorly sexy, so ha!
-insert random notable quote from Excel Saga here-