From what you have said, I think it is very unlikely that you could be eligible for a Variation in Travel Conditions. See this information page from INZ
https://www.immigration.govt.nz/new-...vel-conditions, which tells you the criteria for being granted such a VOC.
Unless you
move to NZ before your travel conditions expire, understanding that you will then have to stay onshore to build up any entitlement to a Variation of Travel Conditions, or, in due course, for Permanent Residence (information about criteria for that are at that same link), your Residence will lapse, because you will be out of the country without any permission to enter to take advantage of it. (Residence allows the holder to live and work for ever in NZ,
while they are in the country.) That would mean that all your efforts to get Residence would have been a total waste of time and money.
The criteria for residence under SMC have changed, and you could well find that you would not now be eligible if you started a new application nowadays. Added to that, INZ is going through a crisis, working a backlog while also trying to sort out a bungled reorganization, so there are hugely long queues even to get a case allocated to a CO for processing, against the background of political arguments about immigration.
Therefore, if you seriously want to live and work in NZ, it would probably be in your interest not to waste the Residence that you have already been granted.