The dome!

For the build, the only aluminum parts will be in the dome.  IMHO, this is the attention grabber and you can paint resin parts aluminum colored, but at the end of the day, you just can't replicate the look of metal.

I started off by picking up the aluminum 300 dome and aluminum holoprojectors (HPs).  The first pic is the dome itself.

In this pic, you can see where the panels have been laser cut and require little work to get out and the aluminum HPs.

Here, I have cut out all the pie panels.

And last, the first HP installed.  You can see where I have drilled so I can start HP #2.  However, I'm at a standstill until I get a couple of parts in.