The only reason I have mine is because I bought up as many extra parts from people that I could in the past. I remember, before I had my car, searching for one for my brother's '84 and coming up with nothing. I think what he did was put a flexible one on. I think he got it from Auto Zone.
I know someone should have it somewhere (maybe Postons?), but the flexible hose is one option. Another option may be trying to match the hose up to one at the store. Might find one similar that at worst you would have to just cut off a little on one end.
Just a thought.