Sure, it just isn't going to happen realistically. Even if you convinced everyone on this board to vote for Johnson, it won't be enough.
I think voting based on prognostication is dumb. You're not placing a bet. Your expressing your preference. If you prefer GOP leadership you should vote GOP. If you prefer libertarian values, and the Libertarian candidate, but you vote for someone else, you're subverting democracy.
I'll admit that, in some situations, 'lesser-of-two-evils' logic can be compelling. If, for example, I agreed with Clinton 10%, Trump 80% and Johnson 90%, and it was much more likely that Trump could beat Clinton that Johnson, then I might be persuaded to vote for Trump. But as it is, I agree with Clinton 10%, Trump 15% and Johnson 90%. Regardless of who is most likely to win, it's waste for me to vote for Trump even if that means Clinton might get in. The five percent difference isn't worth misrepresenting my views and missing an opportunity to stand up for what I believe in.