It's a historical fact that the church fathers determined which books were genuine and which were not. During this same decision making they also distinguished valid Holy Tradition from heresey as well.
It is strange that you would accept their interpretation of what should be scripture and reject their authority over Holy Tradition.
It's a given that fundies believe the bible is the inspired Word of God. I was talking to an Episcopalian guy that didn't believe the bible was without error. He did what you are doing and considered the natural process of translation and book selection and concluded it was untrustworthy. This nullifies what the bible says in the same way that Pharisees made the commandments of God of no effect with their traditions.