Sorry, do you mean within or from?
Actually, if you mean within, I think we need to set up a conservative-only organization within the party, that nominates a candidate from among the most conservative (no RINOs like Jeb or Christy-Kreme) Republican candidates before the Republican primaries.
This could be done via an online pre-primary held by this new party, with the understanding that all members who vote in this primary agree to vote for the winner of the pre-primary in their state’s primary. In this way, we could take back the process, avoid being RINO-blocked for the nomination, and tell the mainstream media as well as the consultants to go pound sand.
Yes, within the GOPe, go 3rd party independent of the liberals of GOP.
It would be disastrous going compelely 3rd party from the GOP for that would guarantee a Hillery win or whom even is the DNC nominee.