I interpret this to mean you have rejected the Greek Textus Receptus of the Protestants and Fundamentalists and think the 4th Edition is the best latest and greatest available. It seems to me that concedes to larger point on inspiration of the scriptures to Catholic Church, and completely abandons the Fundamentalists, this one verse notwithstanding. If you reject the Latin Vulgate, hold that better manuscripts have been found recently, it suggests you have neither had the complete Bible until now, and since other manuscripts may be found in the future, you may not have it now. Forth edition you say ? How many editions will it take to settle the original manuscript issue ? I think there is one frequent poster who believes all the original manuscripts were written in Hebrew. With that position, one could do what you are essentially doing, but by projecting what thee Hebrew was like that the Greek was based on and forming doctrine based on those hypotheses, a risky proposition.
First: the original Hebrew and Greek manuscripts are no longer in existence. So no one can lay claim to having the "original" texts....or as you want to put it the "complete" Bible. Unless you're referencing the apocrypha which Jerome noted as being non-canonical....at least until Trent. Any who do are deluding themselves.
What we do have is ongoing scholarly research to provide us with the best translation possible from the best texts possible. I'm all for that. The good news is that the Bible as we have it today is considered to be a very accurate rendition of the original texts.
There are issues in the translation of the Vulgate. One of the most glaring occurs in Luke 1:28 regarding the greeting to Mary.
Instead of translating κεχαριτωμένη as "you favored with grace", as in the Greek, the Vulgate translates this as "full of grace". There is a big difference between the two renderings in terms of theological meaning.
The Bibles with the best word for word translation are in order of word for word down to thought for thought:
Interlinear
NASB
AMP
ESV
RSV
KJV
NKJV
HCSB
NRSV
NAB
NJB
NIV
TNIV
NCV/ICB
NLT
NIRV
GNT
CEV
LIVING
MESSAGE
I understand your comments to mean you don't believe the texts we have are true copies of the holy scriptures. That is a direct contradiction of the Fundamentalist position, as well as the Orthodox Jewish position. It exposes one of the problems with Sola Scriptura when you admit you don't really have "The Bible" but only the best Bible money can buy, so to speak.
It seems to me you have a problem with this text; you may not know if it is accurate or not; did it only guarantee the Hebrew scriptures would be preserved, every jot and every tittle ? 2 Timothy and 2 Peter would then apply to the Tenach with a looser interpretation that Paul's writings were like other Tenach scriptures; this would be untenable in my view, most especially with the words of Jesus in the Gospels and Revelation. No, I see a huge problem for Sola Scriptura when you confess you don't have the genuine Bible, but it is getting better as scholarship improves.