I don't think there's a publicly available FS9 model for the PC-6, other than Mike Cronin's model. I am going to see if I can port the paints to that model.
Repaints are available in the following formats: 1024 bmp (for FS9), 2048 dds (HD textures for FSX/P3D) and 4096 dds (for high-end computers running FSX/P3D)