I'm embarking on the journey of getting a new project car (also daily because I can only afford one car). I'm looking into an 83 280ZX. It's got 70,422 miles and the owners asking $4200. Red exterior, black interior digital dash, and five-speed. Minor paint chips around the door frame but otherwise good exterior. The Interior looks good in the pictures. What are some things I should know before test-driving or buying a 240zx?