Nothing in the NZ rules about minimum altitudes for stalling or recovery. We used 2500' for most exercises where I was.
I had one pre-solo student put me into a RH spin onset at at 2500' (C152, full aft column, full power and a badly rebuilt wing) and another pre-cpl while doing wing-drop (full flap, with power) at 3000' (admittedly no real horizon for that one).