I agree with 411A. You would need the DME to determine the MAP; no DME instant missed approach. However, any turns required on the Miss would have to begin at the MAP and you can't find it except with a guess. GPS would work in FAA airspace, as 411A said.
I've seen approaches like this overseas and can't figure out why. NDB/DME, sounds pretty stupid. If you have the DME, why not fly a VOR/DME or TACAN (mil only)approach. It's rare that the DME would work but no VOR azimuth. I flew night cargo eons ago and we used to joke about the NDB Glide Slope approach when we lost the LOC receiver. Stupid then, stupid now.