Just keep the slogan alive: “We come to punish establishment Republicans in the primaries, and Democrats in the generals.”
Your slogan died when Romney lost and the GOPe ramped up their attacks on conservatives.
The new one slogan is: “GOP, if you want the support of conservatives uphold your sworn duties and defend our Constitutional rights against attacks from all enemies foreign and domestic” So far it’s been pretty much fail across the board on that account.
So don’t be surprised when many conservatives take a powder in November if no conservative is on the ballot. If the GOP can’t be bothered to be an engaged opposition party with a rampaging marxist in the WH there is simply no reason to support them. See in you 2016, FRiend.
It's a given that when conservatives attack moderates, they will reply in kind. Ultimately, the real battle has nothing to do with ideological hair-splitting, and everything to do with the purple states, where a big chunk of the middle (union members, blue collar workers and lower end office workers typically) see the GOP as the party of plutocrats stomping on the middle class by championing unlimited outsourcing (via free trade agreements) and open borders. No amount of pro-life rhetoric and anti-gay marriage posturing will fix that perception problem.