richms: Ali express has lots of 1m aluminium LED strips and shorter ones, but longer is a problem for posting them at cheap chinese post rates.

The longer plastic LED strips come on reels of up to 5m, which makes for efficient postage. They could be easily attached to aluminium strips bought in NZ with double-sided tape or hot glue (many strips come with a backing of double-sided tape). The long strips can be cut down to the length you want... typically there is a place where they can be cut every 3 LEDs or so. So one 5m reel could make 5 x 1m strips. All the sections could be connected to a single controller, or each to a separate controller.