We have 2 manuscripts that are related are P66 or 72 (don't quote me on it) and vaticanus, but one is not the copy of the other.
P66 is an awesome manuscript of the Gospel of John. That is just one book out of the New Testament. Dated 200 AD by paleographers. But you claim "The original words of the Qur'an are unavailable" which is such a fantastic statement given that your argument is 100 years later etc. Dont you think its a hypocritical statement?
You quoted P66, do you know that this doesnt have the famous Pericope of the adulteress? Now that's a major textual variance. Who me one variance of this magnitude between any of the Quran manuscripts found anywhere in the world.
P72 is earliest 3rd century. Vaticanus is a near complete bible but that doesnt have the trinitarian verse. Now thats a stupendous variation. Show me one variation even close to that between two Quran manuscripts. Mate, when you quote your own manuscripts, do you even know the variations? Do you even know the contents? Earlier you quoted SInaiticus as something you study but you had no clue what was in it. Whole books are missing in the current bible. Let me quote you two. Epistle of Barnabus and Shepard of Hermas. Now that is huge difference.
I dont mean to disrespect you but lets not be hypocrites. Show me what variants of the Quran you are speaking of.
Old manuscripts are bound to decay. Bound to get lost and perish. Thats how it is. No one in their right mind will discredit the bible because the oldest manuscripts are small in size. The Topkapi Museum manuscript has 99% of the Quran dated second century Hijra. In contrast, whats the percentage the P52 represents of the bible. .015%??? Thats second century AD. The earliest manuscript ever found.