The parts are still available from your local dealer or Maximillian Importing Co. The fenders are 2 x $919.34. You will probably need to replace the four "connection plates" 2 x $38.10, 2 x $52.40, and the "Extension" for 2 x $147.18. There are a bumch of other parts that you may need to replace at the same time and you may also need some patch panels.
Walloth & Nesch also has some of the parts.
I have pictures of the fender replacement process from when I did it at home.
The windshield gasket is also available from local dealer or Maximillian Importing Co.