It's assembled on a VW Type 1 chassis, check the rear frame horns & frame head as well as the axle beam for rust. The IM rear deck lid hinges will have Intermeccanica cast on them . At 40 Y/O, check the suspension, electrical - gauges etc. and all mechanicals. Posting photos here would be a plus . I restored a nice IM two years ago it was solid as a rock when it arrived here.