If R&R or Novusordoism is true they are obviously outside the Church, [...] Don't risk your salvation to a crackpot position of one theologian and then adopted by a small minority of Thuc Bishops.
Wrong analysis, my friend. The Novus Ordo, which R&R officially recognizes as the "Catholic Church", at the very least, tacitly holds that even Buddhists, Muslims and Jєωs are somehow inside the Church and can have salvation, if they're of good will. So sedeprivationists certainly can't be outside the Church and damned, if those who reject the true Christ (proclaimed by the Athanasian Creed) can be saved.
In other words, it's a safer bet to be any sede that doesn't breach the threshold of schism, than to be novus ordo. If the sede is wrong and the novus ordo is right, then the sede is still saved as are all other religions. But if the sede is correct, and the novus ordo is wrong, how many novus ordo will be damned? Our Lord tells us narrow is the way to the Father, and few are making it through...