You definitely need more "stuff" and clutter in your current tank for a ball python to feel comfortable, especially if it's young/small. For example, what jakethesnake posted is perfect (but adding even more stuff like fake leafy vines wouldn't hurt and would always help them feel secure). You also need more small hides that fit snugly with your ball python, not huge ones.
As long as you can maintain proper temperatures and humidity and clutter in that big tank, it will be fine. If you can't, then you might want to go with a pvc cage or a tub setup.