I found one for sale in exc+ condition at a US dealer for US $650. That's not much money for such a very fine lens.
I briefly owned an Angenieux 180mm f/2.3, but it was not significantly better than the Nikon 180mm f/2.8 I already had, so I sold it on. I now use a Carl Zeiss (Contax) 180mm f/2.8 on my Canon EOS 5D. They are all very fine lenses whose results are difficult to tell apart.