Hello Mr. Scott, I also own an E30, so I know hat parts can be hard to find. The first place I would contact would be the dealer as they still have some parts for it. There are also some others that still have parts such as https://pelicanparts.com/BMW/index-SC.htm, https://fcpeuro.com/ and https://schmiedmann.com/, the last one is in England. Aside from thse companies that are a few others in the U.S. In addition, the best places to find used parts are forums, EBay in the U.S. England and Germany. Hope I was able to help. Thank you for your question.