Okay, so today the Bible and the Quran are still sold for a price. If you go on Amazon, you will find various Quran's with their prices. Does this mean the Quran is corrupt?
Chapter 3:71 says they KNOW THE TRUTH but are mixing falsehood with it. If they know the truth it means they know the Torah which Allah sent down. Mixing falsehood with it does not mean the scripture is corrupt, it means they are lying about the truth which they know.
2:77- Why not start from 2:75 which says A PARTY OF THEM conceal the scriptures and this party of them concealed it from the party thay still believed. It was not the Jews as a whole concealing or corrupting scripture but a party of them. How does that translate to the book being corrupt. If some Muslims were to decide today that some Surahs are no longer part of the Quran and hide it from their children, does that mean the Quran is corrupt?
2:41- very odd verse to use because that verse literally just said they HAVE the Torah and the gospel and it is WITH them.
2:146- A party conceals it. A PARTY...same explanation as 2:77 applies here.
3:3- Very odd verse to use. It says Allah revealed the Torah and the gospel. Allah elsewhere says NOBODY CAN CHANGE HIS WORDS (Surah 6:115, 18:27) are you saying men are more powerful than Allah? Allah reveals something and then men change it as they wish and ALLAH is too weak to do anything? Is this really what you are saying?
5:66- Again, A PARTY....in fact the verse you cited says there are some on the right course based on the gospel and the Torah.
9:31- Not sure what your point is here. The Torah and the Gospel still command to worship one God. God in the Bible is a trinity though so He is a real "WE" unlike Allah who only identifies as "WE" because He thinks it is more majestic to be "WE" than "I".
57:27- What does this have to do with scriptures being corrupt? They invented a doctrine. Ok? Muslims can invent the fact they have to worship Alat, Uzat and Manat. What does that have to do with the Quran being corrupted?