I worked from screen caps. And precious few at that! The only place of contention in my mind is the area around the red lens louvre. There MIGHT have been a bit of a "mound" to the area directly around that trapezoidal hole, but I couldn't verify it. So I didn't attempt to "guess" what it "might" have been other than smooth like I made it. Otherwise, I'm honestly certain that the piece is as accurate as anyone could make it.
But like I said, if you have any questions about how it goes together, just let me know!
-Gordon