In the old days I used the NDB but when I flew back from Bundy via Broken Hill in my Jab, I just used a GPS. I figured if that failed, just follow the ranges down. Going via Renmark might seem a long way but it only adds about 20 minutes flying time (ignoring anytime on the ground at Renmark) 210nm Gawler to Broken Hill, 235nm via Renmark. Between Morgan and BH it is pretty remote and barren, littered with the bleached white bones of aviators who were not prepared.