Help combining Cutout + Toon Shader

Hi there,

I'm very new to shader creation or any code in general so I would greatly appreciate the help.

What I want is to combine two shaders, namely Transparent Cutout and Basic Toon. I've tweaked the Cutout shader to turn Cull Off, all I really want now is the ability to add a cube map and apply the toon shading.

Blind experimentation isn't getting me very far and this is quite urgent so I'm seeking any help I can get... Thanks in advance!