I understand what you're getting at, but you err to a degree in stating that a man will never commit another single sin again after his conversion.
Paul says "I am", not "I was", the "chief" of sinners. Just because you are reborn does not mean that you will never make another mistake again. Being reborn means that sin no longer has the authority over you that it once had. Now don't misunderstand me; if a man continues in his sins, and if he is the same type of person after his supposed "conversion" as he was before, then he most likely did not experience true conversion.
And what about alcoholics and drug addicts? Are you saying that they are not reborn until they completely cease their addiction?
Christians have victory over sin and death in the Person of Jesus Christ if He is Savior and Lord of that person's life. However, the sinful flesh still remains with the soul, tempting it to sin, while you remain here, alive on Earth.
Furthermore, if what you say is true, then there is never a need for a Christian to ever ask forgiveness again after conversion. Why, then, is it that Jesus Christ outlines the manner in which we are to pray(the Lord's Prayer), including the statement "forgive us our trespasses as we forgive those who trespass against us"? Do you believe that this is a one-time thing?
Why should we work out our salvation with "fear and trembling"? Why should we "strive daily to make sure our election"?
How did Peter, a dedicated apostle to Jesus Christ, deny Christ three times??? Peter lied, and not just that, but denied Christ before men! Was Peter a Christian before that time, before Christ came to Him after His Resurrection?
BTW, it would help a lot if you would use some punctuation and line spacing in your posts, jtc....