great if Kaveman can help, good to support the Forum supporters...
But here's another option, little 2.5" Z Man paddle tails, very slim profile unlike some of the other minnows which to me look too fat for smelt - more like sprats. They also have a 3"in the same pattern. Will cost you about $20 in fast shipping, but Anglers Warehouse take the Aussie GST off (10%) which eliminates the exchange rate factor, and the significantly lower price than Z Mans in NZ makes a bulk buy worth it. Jackall and some of the other manufacturers make softies with eyes, but to my eyes that always looks a bit odd with a jighead in front. Rather have a plain body and stick eyes on the jighead to get the overall fish profile/dimensions right. if you're fishing below a ball sinker and a trace, one with eyes would make sense.
I got some of these Z Mans for trying at Lake Rotoiti, look great. I'm keen to try the Motor Oil for its UV factor as well as the more smelt-like colours.
While you're on the site, check out the finesse jigheads they have which are much more suited to trout fishing than most we can get here.