JacquesBuys wrote:
Which other spot in that region (close to Langalibalele) would you recommend to sleep over at?
None

There's a spot at the base of Gypaetus Point in the valley, before the incline to Bannerman Pass, but that might be too far away for your liking, and there is a kraal further down that valley too. Otherwise try sneak close to the edge along Bannerman Face and see if you can find a little nook somewhere.
Yes the Namahadi Cutback is the cutback further north of Namahadi Pass. It has several passes. Have done 2 there but plenty left.
The first pass you mentioned is called Dagga Neck Pass (its an established name, not my own). It is part of the Maluti Caves Trail area and is accessed differently to the Namahadi Cutback. The dam walls belong to an old ski resort now in ruins. Have walked along the top of that second pass. There are numerous passes along here which access Phuthaditjhaba. There is a major one a couple hundred meters North from that one too.