Where can I buy a miniature, dwarf or pygmy goat in New Zealand?

Nigerian Dwarf goats( a miniature dairy breed) have recently been imported into New Zealand. However there are no 'miniature' breeds  or miniature breed standard  recognised in NZ by the NZ Dairy Goat Breeders Association. There are also 2 small NZ feral breeds - the Arapawa Island Goat or the Rawhiti Goat. Some of them can be quite small, but there is no guarantee that subsequent generations will remain small. Neither breed is as small as the Nigerian Dwarf  and  the African Pygmy Goat breeds.