oh- and you're gonna love it because you can get right up next to her. The right hand is only about 6" from the barrier so you can see everything really REALLY well. The lighting is soft, but there is no glass at least.
The metallizing is feasable- they use a copper paint or something and then bond the plating to that. Have you seen the large scale Terminator sculpture that looks like metal? It is actually plated plastic but it looks like chrome.
Trisha Bigger also described how they made some of Padme's metallic headresses for Ep II out of plated plastic at CII so I am guessing they did they same here- either Vac formed plastic or fiberglass with the silver plating. (the XWing pilot's chest boxes for instance are fiberglass.)
-cris