I was just checking it out, and hit the Parts Finder button and found parts that come from almost everywhere for American-built classics. A 1949 Hudson engine from Australia? Huge database of stuff sold by owner. http://www.classiccarpartsfinder.com/ Try the Car Finder button too! They also have a Fee-based search service.
That's a toughy. Probably like a needle in a a sewing cabinet. Tried these guys? http://www.dearbornclassics.com/ http://www.perogie.com/torino_parts1.htm http://www.gregdonahue.com/