Progress! Now that all of the holes have been drilled I can move onto the reinforcement rings and back of the shell bracing. I just got the first coat of paint on and I'm liking it. I had to do some careful arrangement with the rings so that the front shell has something to register onto the back shell. The front has some nice translucency to it. 

 Now, a little more work to complete the finish and I can work on the dish which these sit on. 

 And...yes...the speakers do fit inside. I checked.