Obviously your situation is very complicated, but I would think that if the
program you are trying to save is really good then the best "spokespeople"
for it would be the students themselves. I believe there is nothing more
impressive or convincing than seeing young students talk intelligently and
perceptively about a work of art, discussing its meaning, its relationship to
history/culture, the artist, the techniques used, what else was happening in
the world at the time, and the work's relationship to their own lives. Next
to actually bringing the "decision makers" into the classroom to observe, I
would suggest trying to capture some of this on videotape and using short
segments as part of your "ammunition." Good luck.