There was a good posting about the GG-1's a month or so ago.
I will try to briefly summarize.
1 of the GG-1's has been purchased by the Henry Ford Musuem, but has never been transported there.
The other GG-1 is privately owned by a member of the Leatherstocking Railway Historical Society.
Both are in pretty bad shape.
The F/E units, I am not sure who owns these, but they are on that side of the track for an eventual museum they plan on building.
http://www.lrhs.com/aboutlrhs.htm
gives a good overveiw of there plans.