Get the Instrument rating
My personal advice is to go and get the instrument rating. Yes, its hard to keep current, but thats not the point. At some stage you may have an opportunity to get a Multi job, but if you then have to go out and do the IFR rating, it'll take you 2 months on average, and thats if you have all the money saved up. To get current, its 2 flights and a check, and that can be done in 3 days. Once you have it, its far easier to get it current than to have to try and do it from scratch. The way things are moving at the moment in NZ, you'd be mad not to get it done.
Nosey