Yes, that would be nice to have. The only NZ reg PC-12 I can find is the McKinnon. Find it over at Flightsim. File is:- mckinnon_oz_nz.zip It's done by James Lambe (jaydor). It's a nice substitute. Although the readme states it's for FSX only it will install perfectly in P3D.
I also put this request on the Carenado PC12 forums over at Avsim. Ron Attwood has graciously agreed to do a repaint in Sounds Air livery. Ron is an accomplished livery painter so I look forward to seeing the end result.