Back to the CSS and their response to the station’s resurgence.
You can learn more about Mimas at http://en.wikipedia.org/wiki/Mimas_(moon) if you’re curious. The first picture should clearly show the resemblance to the fictional station I told you about. (Herschel, by the way, is that crater.)
The Encke Gap is ~133590 km from Saturn’s center, while Mimas is ~185520 km from it. Coupled with the fusion engines, realistically it wouldn’t take all that long to reach (Titan is ~1221870 km out).