The Free State will succeed by a coalition of like minded people. Having left the old world for a new land based on a common governing philosophy will be the binding agent. Depending on the state they could work in or with the Republicans or a 3rd party. Too early to tell which course it will be.
That commonality of purpose on some issues will likely serve the Porcupines particularly well in the initial stages of the relocation, during this coming election and the following one in particular- it won't be for at least 8 years, two election cysles, that the real FSP impact will be felt. But in that time, Porcupines who've been long-term residents in the FSP's goal state and the *first wave* relocated there will begin testing the waters of potential coalition and common cause.
Likewise, I expect stonewalling from some unyielding RINO *Stalinists* who'd prefer to lose rather than forge any sort of alliance with any sort of l/Libertarians, and they may well be the first targets for Porcupine Party alternate candidates...or a *none of the above* ballot initiative.
But note that Porcupine Boston T.Party has theorized something fictional along those lines taking place in Wyoming:
"This is the weirdest damn thing I've ever seen. How 'bout you?"
"Oh, by far! Hey! Guess what their voter registration is?"
"All of them?"
"Yep. Every last adult. No Democrats. No Libertarians. No Natural Law. No Independents."
"Whaddaya bet same thing's goin' on in those other counties?"