So the problem with doing a build-off with a guy who is a professional airbrush artist is that...he is a professional airbrush artist.
I have masked up some custom graphics on my models in the past, and I usually go with easier stuff (that also pertains to the model) but if I want a fighting chance against Z this had to be done. He's already much better at scratch building than I will probably ever be. Not really everyone's cup of tea I'm sure but here it is. Im going to weather the graphic in a similar style to the decals.
This is how I approached the graphic.
Thanks for viewing! Next one will be better!