The manuscripts used to translate the Bible existed when Muhammad dictated the Qur'an. Where is Islam's manuscript evidence for the Qur'an? The fact is there is none.
Since you linked to a KJ only apologetic site that denies the authenticity of early manuscripts I suggest you debate the manuscript evidence with Terry Watkins. Since most of his "changes" have to do with alternate English choices for Greek words. English translations of the Qur'an demonstrate that not all Arabic scholars agree on how to translate Arabic.
The most convincing evidence for the reliability of the Bible is the manuscript evidence.