I found May's new wiper arms at:
http://www.airheadparts.comor sometimes Valero can pull something out of a pile in his shop in Auburn.
I purchased a set of Bosch blades at Bugformance in Sac. They had arms for bugs, but nothing that would fit a Ghia.
I have been using Rain-X window cleaner for the outside and Rain-X anti-fog 'wipes' for the inside.
So far, the combo has been bullet proof in the rain and cold mornings.