So I'm not sure if I'm making sense but im making it so that Naruko doesn't have chakra as her main power source in this story but instead her main power source is her sky dragon slayer magic.
She can still use chakra thanks to the Kyuubi but that's it the only time she uses the Kyuubi's powers is to amplify her attacks or when she needs a edge in the battlefield such as the need to run fast to catch her opponents off guard.
So tell me if this makes any sense and if any of you find any mistakes please tell me so I can correct them.