Try one of the Werkmeister tunings, or Kirnberger. I've used those on a pipe organ I used to maintain and play. Very sweet in the proximate keys but a bit jangly in keys with more than 3 sharps or flats. Another one I've played with a bit (but not so much, because I do my tuning by counting beats and to me it seems harder to tune) is 1/4 comma meantone.
I think you'll find those 18th century tunings enough different from equal temperament to be interesting, but they won't sound 'inappropriate' at all. In fact, for music that doesn't modulate all over the place, I predict you'll find them an improvement over equal (mis-) temperament.

-Glenn