I think Bass, Wilcox, and Sullinger will all look good paired with KG.
The question is what combo works when KG is off the floor for 20 MPG? (Also which of those three is best for 28 MPG.)
With this team I'm leaning towards: start KG and Wilcox (call them whatever makes KG happy.) Use Bass off the bench when KG comes out, and then leave him in when KG comes back. You can get all three guys above 24 MPG that way. Sullinger/Green/whatever other center we bring in, fill the remaining ~16 MPG.