Okay, thanks. I haven't yet taken part in creating a hack, but I am currently setting up a hack with a small group where I am creating the story line. If I don't have enough experience for your group, that's fine. My experience in coming up with ideas is predominantly in owning and taking part in RPs, so I will show you some of my past plot ideas if you'd like (one of which is the base of my hack).
Thanks for taking the time to reply to my question ^.^