If Sarah gets in, why won't perry get out, like you say, we don't need a nasty primary fight.
Sarah is going to get the nomination and no use muddying the waters like Huckabee did back in 2000 {you sure it was 2000} to sell books and get a TV gig.
My version is just as calm and reasonable as your version, but I'm not too sure about huckelberry in 2000, I thought it was 1996.
My personal prediction is that Palin will get in ... she will begin leading in the polls and she and Perry will make a deal that he gets the veep spot. They would make a good team. Beauty and the other beauty.