Going to be wonderful. Just re-read the thread, did you figure out your internal battery question? I was going to comment that if there is no adapter for it that many people (including myself until an adapter was made), simply bubble or foam wrapped the battery and stuck in the seat tube or seat post. As for Junction box B, I would recommend wrapping in a bit of bubble wrap with bands just to prevent annoying noises from inside the frame when it wiggles and jiggles and giggles inside it.