I doubt that Ron Paul was ever on Sarah's RINO target list? I added that sig line when so many RINOS went down to all those Palin Tea Party endorsements in 2010.
It was a long enough list to get Sarah uninvited to the 2012 convention. Both she and Ron Paul were not welcomed to speak and all those Conservatives stayed home.
More RINOS went down in 2012 and 2014. Not enough...
Paul is about the only RINO I can think of. Palin is as mainstream as it gets as demonstrated by being McCain's running mate and continuing to defend him. Considering she has been running for and/or holding office since her mid to late 20s we would be calling her a career politician if she were a registered democrat.