I guess it depends on how far you intend walking. Most people visit Field East as a day walk, as the circuit can be done very comfortably in a day.
The track via Lake Nicholls does not have much in the way of camping spots; it is either quite rocky or has dense vegetation.
The section from Lake Fenton has a couple of spots but they are not near water and the Windy Moor area is humpy from low vegetation and tussocks. You may find a spot in the trees at the base of Field East, but it only takes 1:30 to there from Lake Fenton.
See the notes on the track.
However there are a couple of walks that are off track that require a couple of days; you would need the Dobson and Ellendale 1:25k maps to discover them.