Dances were adopted by classical music from very early on:
In the baroque era, suites consisted of dances like Allemande, Courante, Sarabande, Menuet and Gigue.
More often than not, this led to very elaborate forms, which no longer could be danced. Waltzes from the Strauss family still can be recognized as waltzes, but may need quite good dancers to be ...
A flautist (panflautist?) proficient enough to get an orchestra seat has enough piano-plunking literacy to read bass clef, so transposed is safe. But if most of the material is closer to a concert pitch clef, use that, at least to not confuse the conductor, to thereby save a few seconds during rehearsals.