I suppose that a silver lining to the two-party system is that one of the two parties has consistently held beliefs that generally align pretty closely to my own, and the one time their nominee didn't, the other party was there to pick up the slack (he lost, but still), so I would never have needed a spoiler candidate or a third party to vote for. This year might be different, though...
Just curious, since your list seems to suggest you're usually fine with voting for "RINO" type candidates, what about Teddy Roosevelt makes you unable to support him?