1969 Dodge Dart GTS w/383

This question may have already been asked, if so please point me to the correct place in this forum.

I am looking at a 1969 Dodge Dart GTS with a 383 to purchase. The numbers on the vin number and fender tag match. Where do I look for the body stamp numbers and what should those numbers be? I have read several different things about these numbers and I want to make sure these are correct before I purchase this car.