There are two Christs in all of us who are saved. The Spirit of Christ which is the same in all of us, I think this is where our new nature comes from. And then there is the Christ in our minds, and yes that Christ is in us too.
Just to be clear I'm not saying in any way shape or form that people who read other versions are not saved or don't have the Spirit of Christ indwelling them. All I'm saying is that the Christ that we belief in is based solely one the words we read and the things we have been taught. If those words are corrupt then the Christ in our minds will be corrupt, not the Spirit of Christ that indwells all believers but the Chirst in our minds.
I think that you are ignoring the role of the Holy Spirit in a Believer's life.
1 Cor 1:18-25
18 For the preaching of the cross is to them that perish foolishness; but unto us which are saved it is the power of God.
19 For it is written, I will destroy the wisdom of the wise, and will bring to nothing the understanding of the prudent.
20 Where is the wise? where is the scribe? where is the disputer of this world? hath not God made foolish the wisdom of this world?
21 For after that in the wisdom of God the world by wisdom knew not God, it pleased God by the foolishness of preaching to save them that believe.
22 For the Jews require a sign, and the Greeks seek after wisdom:
23 But we preach Christ crucified, unto the Jews a stumblingblock, and unto the Greeks foolishness;
24 But unto them which are called, both Jews and Greeks, Christ the power of God, and the wisdom of God.
25 Because the foolishness of God is wiser than men; and the weakness of God is stronger than men.
KJV
It is the role of the Holy Spirit to interpret Scripture in the mind of each believer to bring him/her to spiritual understanding.
This role is NOT translation dependent.