@INovaeKeith I know you have an artist lined up already, but if you were in need of a backup plan, you might want to give this guy called Blakus a try. AFAIK, he’s done work for games/movies and the like already.
Here’s his soundcloud wall.
Here are some of my favorite tracks:
He seems to fit the bill as the styling guidelines are concerned.
Just thought to let you know. Just in case.