Does the show have the option of purchasing full background orchestration for the whole show?  

I am performing Pretty Funny from Dogfight in a recital and I am looking for the instrumental accompaniment score. I have the piano score but I would love to get the string part and guitar part so that I can have a more authentic sounding performance. The cello especially on this piece is just gorgeous! How and where can I get a copy of just that song’s full score?