vandersteen is a very good match with the jolida. you could get a used pair of 2ce's (maybe even signatures) for ~$1000. the combo would be great for orchestral music (i'm a big classical music listener myself).
i've used gma europa's with a 502a, and had excellent results as well.
currently, i am using dali suite speakers. a pair of suite 2.8's just came up for sale at $795, and i would imagine they would sound stunning with the jolida. for large scale classical music, i think that you would be better served by speakers that are closer to full-range, like the vandy's or dali's.
that's a nice setup of gear you have there... lots of good speaker options in your price range. you should be able to come up with a system that sounds far better then the price would suggest.