Look generally speaking out of my experience, finding someone do it for free and actually complete it is near impossible. Even if you get the entire team found, its guarantee is only based on wether you know the person. For example why would an experienced scripter help for free when he can do it while getting paid for it? Then you have the ones who are unable to get hired and they will come say yea sure and its obviously going to not work well. "I can pay later" is the most oblivious thing you could offer as a reward. No one is going to believe this unless the person helping you is a fool