I think including the story will be critical in figuring out how to overlap the stories. :) and if the story varies from the Disney or Once version from, it should be fine. Like for Ariel, I am going to keep bits and pieces of her story but I'm gonna turn it into a new direction. :)

I am still looking for Rumpel... He is turning out to be hard to find! I found a picture for Ariel, though she's not a red head. But Rumpel... I want this specific look for him and I can't find. Alas! I shall keep looking!!

I fell asleep way before you got close to finishing. I was still looking for Ariel's mermaid form when I fell asleep... :-/