Acoustic post metal?

I liked the idea of post metal, but never really got into electrical instruments.  I took a classical guitar class in college and had the idea that I would try to combine metal on a classical guitar without enhancements from electronic apparatuses.  I wanted to create a sort of post apocalyptic steam punkish atmosphere musically.  I then developed a screaming voice that passed to the classical guitar and started traveling and improvising on the street for awhile.  Let me know what you think