I am average in scripting but pretty good in mapping. Can change the world to however I want. Check out my DeviantArt on the mapping I do. Some are samples but others are towns and routes I did.
Sorry. I was offline a while... But I accept to help you out. Although the only things I can do is mapping, a bit on scripting, inserting sprites, and editing pokemon data.
Oh well. While you make the changes, keep in mind that you need to come up a name for the evil team/organization, name of region, gym leaders, all that common stuff in hacks.