Wow! That looks like a great pattern! I think you would want to pick a variety of fat quarters. Decide if you want one, two or three different colours to begin with, and then choose fat quarters within each colour, in different values--light, medium and dark.
I just happen to have about a dozen red, white and black figured fat quarters left over from a project (just try to find those colours when you really need them!) and I think they would look awesome in this pattern. Thanks for adding something else to my bucket list!!