There is some good water in a flatish section after the first major climb - between 950 and 1000m contours as marked below.
I haven't camped there, but it looks promising.
Another spot would be a descent to the first tarn below the top - also marked - it looks like there might be some flat sections.
The other dramatic tarn below the track to the east has a wide shelf at its edge with what looks like grassed areas. It might be a scramble to get down to it though.
The ridgeline further to the west flattens out a lot - but camping up there would be very exposed.
I did read an old Tasmanian Tramp description of a trip to Mt Murchison where they were caught out and shivered under a rock overhang right through a very stormy cold night.
That would have been somewhere along the ridgeline. I wouldn't plan to repeat that though.
- 3 possible spots - on the track after the first steep rise, and the 2 tarns near the top.
- Tarn in the basin - the flat open bits might be Ok - but might also get a bit wet.
- Larger Tarn below Queens Head as seen from the track far above it. The shelf before the edge looks to have some grassed sections.