So that's why you became muslim? You don't want to take any chances and miss spot in paradise.what if the Quran is truly from God, and you guys are denying it, what will you say on the day of judgement? what do you expect from God?
As per your version of islam, anybody who does not consider Mohamad as prophet will go to hell, even though he obeys every command of God, lives a pious life, do charity, remembers Lord for every breathing moment.
You look more committed to Mohamad than Allah.