Color, option content,condition, and most of all- originality determines value on these cars.
Questions I would ask:
If 13,000 original miles why the engine rebuild? Car does not sound like it is very original with major components either rebuilt or replaced. Was the car raced? That would explain the 12 bolt switch perhaps.
Another place to ask your question:
www.nastyz28.com
Value: IMO (on your discription) Between $15K and $20K- perhaps less upon inspection, body work, bad paint and the rest. Best of luck. Could be a great driver.
