Final straight: K2 Subculture 161 2014 or K2 Ultra Dream 159W. 11,5 boots, 210 lbs, beginner, but I'm sure he will pick things fast, like he always did with any sport. At home we dont have powder, but most valuable time in real mountains will be generous with powder (sidetracks, sidecountry, no backcountry yet). I bet on Ultra.
And I am leaning towards starting my own quiver, want to add something more playfull to start learning ground tricks, rails and boxes. 159 Salomon The Man's Board is excellent for high speed charging and OK on powder days.
I can grab:
155 K2 Brigade 2014 (slightly used)
157 K2 WWW 2014 (slightly used)
157 K2 Hit Machine 2014 (slightly used)
156 K2 Raygun 2014 (slightly used)
155 Nitro Anton Gunnersson Pro one-off 2012 (new)
155 Nitro Markus Keller Pro one-off 2012 (new)