I am trying to identify a 450 se. I don't know the year, I think it is between 1977 and 1982. The body is in tough shape but the interior is mint and it runs ok. It even still has the first aid kit in the trunk. It was imported from Germany in the early 80's by a private individual who has since lost all the paperwork. Any ideas on where I can get information on how to identify the model year and what the value of this thing would be?