How would I go about finding the value of an Opel GT Body? The engine is locked up, so of course it doesn't run. It's been sitting under my parents deck, out of the direct elements for about 15-20 years. The body appears to be in very good condition with not rust and no visable dings or dents. The paint is probably marginal, but might be okay. I can't tell because it hasn't been washed since it was pulled under the deck. It's that orangy-yellow color. I can't tell you about the interior. There may be some things salvagable in there, but I haven't gotten in and looked. Tires are probably pretty dry-rotted, but might hold air long enough to pull it out and take some picture. It belongs to my brother who is the world's biggest procrastorator. He doesn't have the time, interest or ability to restore it and neither do my dad or I. Also, he can't remeber what year it is. How can I go about figuring that out?