The answer is to nominate someone who isn't in "The Club" and isn't Donald Trump.
Not on the table right now. Let me repeat - you go to battle with the army you have, not the one you wish you had.
Going further, just who would that be? You gotta be a larger-than-life, bombastic, completely self-assured individual to stand up to the ****-storm the media is going to throw at you. Who is going to sign up for that who also meets your criteria for being a nice guy? Being "nice" doesn't get you any less of a media-bashing, ask Mitt Romney.