You might reconsider that position. It gives 'early' copies of manuscripts more weight when they may not be accurate, just early. The NIV particularly suffers from this position.
You should investigate the work of Ivan Panin, who found numerical patterns in the Received Hebrew and Westcott and Hort texts that are not in other textual collections. The guy was an agnostic, studying the Gospel of John in the original Greek when he had his revelation. Became a Christian as a result. Again, Google works well.
It is the presence of the numeric pattern that indicates that you have the inspired version, not whether the text you are using is the 'earliest' known.
What is 'original' is unknowable. Basically an unfalsifiable position. No different than when the evos do it.
Which manuscript did he use? The TR? The MT? Greek Orthodox?