Try International Auto Parts (IAP), I have used them, also Spider-Point, they are located here in Germany where I am stationed. There Website is www.spider-point.com, they have a english section for there parts, I have used them the most and have had great success with them. Good luck on your hunting.
I might be able to help if you tell me what you need, going to pick up my parts car in a bit over a week and I'm going to tear it down to the rusted out frame and keep all the bits I get off it to use on my other 1970. I believe the '72 is same body style and parts are interchangeable so if so send me what ur looking for and I'll see what I can do to help... Also, finding parts this model-type-year is an absolute nightmare... ebay has some pop up every now and again but ur best bet is junkyards or craigslist or some such... at least for what I been searching for!! :bang:
I have had excellent success in getting parts from Shade Tree Enginetrics, which is located just outside of Dallas. Call Rob or Cindy and they will be happy to help you.