Do you have any examples that show him as a friend to man, that combats the ones given to show that he is not?
Sure. He tried to free man from God's tyranny. He wanted that man got to know what God wanted to conceal from him.
Just like modern freedom fighters and dissidents - governments (e. g. the Chinese one) try to conceal information from their people, and dissidents try to reveal it.
Incidentally: Did Satan really lie?
God said: "As for the tree of the knowledge of good and bad you must not eat from it, for in the day you eat from it you will positively die."
Was that true? No. They did not die "in the day" they ate.
Satan said: "You positively will not die. For God knows that in the very day of your eating from it your eyes are bound to be opened and you are bound to be like God, knowing good and bad."
Was that true? Yes. They did not die until some 900 years later, definitely not "in the day" they ate as claimed by God. Also, their eyes were opened, and they did become "knowing good and bad" (God himself later confirmed that "man has become like one of us in knowing good and bad").
So, God was the liar in Eden, not Satan.