DMEs were commonly co-located with NDBs in Australia. Only difference was that you needed to tune the DME separately to the ADF, unlike the slaved channel tuning of a VOR/DME pair. If it was with one of Oz' old domestic DME installations you'd set the channel in the DME box. If it's with the more modern international DME you'd tune the paired VOR frequency to get the DME to tune. If you needed to use the VOR on a different frequency then you'd select the hold function on the DME to prevent it changing channel when you retuned the VOR.