Yes - visits should be OK (assuming nothing drastic happens between now and your visit)
Bring your Airport ID, ring (tele numbers in NZ white pages under Airways NZ) the Manager/Supervisor of the unit you wish to visit, and arrange a time.
I hope you enjoy your stay in our country (looks like we may have a summer this year) just don't mention the money thing during your visit cause it's all about life style
Cheers
SAS