I'm not so hot on G3 anything, but iirc wasn't she very limited in her release outside of Europe?
I am 99% sure she's one I have still MIB, and the main reason for that would either be that she was a European release or I got her very late and never deboxed her...
I can't speak for what a current good price would be, but being that you're in the US - where I have a feeling she was less common if not nonexistant - you might get more interest (because of lower shipping) from domestic buyers.
Hopefully someone with more specific G3 knowledge will be able to give you a good benchmark. She looks in nice shape