[Jay.]

Look mate im going to be honest now and say that you will not get a 'pro' or at least 'good' scripter without offering some money. Scripters aren't interested in being a owner/co owner, I know it's been said millions of times but again im saying it "OWNER IS A JOB"! Oh and if you did happen to find a scripter for what you're offering "Owner/co owner" he would probably be a noob and could even steal your script.

Up to you.