This is an excellent idea. I think the reason no one has risen to the task yet is because it may be a monumental undertaking. The first step is to look at every quest in the game and then determine which have items that are not limited to the quest itself. Something to think about. Any takers?
I think that this kind of gameplay will be hugely popular with Classic. We will want to try to work with you guys with finding a space to help keep track of this kind of thing. Get the hype going and we will be there with you.