I think you might want to sell things in Euros and buy things in Dollars if possible, Doing the opposite is rather painful.
If you put it on consignment, it will cost you 20%.
I would talk to some dealers though, and see who can move an instrument like that.
Don Robertson comes to mind immediately in the states,
http://www.robertsonviolins.com/
These guys seem to have a great inventory in that price range and above in England, I almost made it to their shop last year but didn't have time.
http://www.contrabass.co.uk/home.htm
Networking to different symphonies and different players you know to socialize that you are selling it is probably a great start.