If I was buying a motor for a rebuild, $800.00 may be a little high, but if the motor was to be a drop-in, then I would want to hear it run, whether in a car or on the ground. Takes about an hour to hook up a tranny, exhausts, fuel and battery. Hot wire to the coil and starter and your ready to go. Don't forget to remove line from starter or use a starter button. LOL