I don't get why the GOP should even bother with NH-01. Even if Shea-Porter were vulnerable (and she isn't), the Republican would either be guaranteed to be a one-termer or a liberal "RINO". Same is true for Annie Kuster's district.
NH-02 is Safe D and NH-01 is Likely D IMO. The GOP should focus on defending Poliquin and maybe finding a decent candidate to run against King rather than wasting time and money in NH.
King's entrenched. He's the only gubernatorial candidate in the last thirty years to get more than fifty percent of the vote (and 1998 wasn't a great incumbent year). The only GOPer that might keep him up at night is...Poliquin. And even then, probably not.