Well then, can we agree that what we DO have as being 'scripture' is enough to get someone into heaven?
John 20:30-31 Many other signs also did Jesus in the sight of his disciples, which are not written in this book. But these are written, that you may believe that Jesus is the Christ, the Son of God: and that believing, you may have life in his name.
1 John 5:13 I write these things to you who believe in the name of the Son of God, that you may know that you have eternal life.
No, because as is clear in our discussion is that we can have radically different interpretations of Scripture.