Well it turns out that the Porsche is going to need a lot of metal work to make it road worthy and safe. There is a company in Guelph Ontario that makes replacement panels for the 356 as well as many other models. They make really nice parts that fit well. We have ordered new floor pans from them. The only problem was that the rust had gone much further than just the floor so we had to fabricate the metal structure that the floor pans attach to before we could install them.