[Melusine]

Actually, I would say that if you don't have even a basic knowledge of IEEP and other tools, you might want to reconsider the whole idea. Creating a mod is an awful lot of work, often requiring the efforts of several script writers...
A much better idea I think would be to ask on the TeamBG forums if anyone's interested in joining forces with you... maybe there's even an existing mod team that is interested in incorporating your ideas...
I'm not trying to discourage you, but I think you'll only get disappointed if you try this all by yourself - it's a lot of work...