[ossiblue]

As pointed out, you have a 68 normal. However, someone put on later, 69+ quarter panels and front fender flairs. 68 was a short wheel base car, 69 and later long wheel base. Look at the first pic and notice the rear wheel is not centered in the wheel well. In fact, it is forward toward the door. The quarter panel on the car is for a long wheel base vehicle which would have the longer trailing arms/spring plates, and the wheel would be further rearward.

Check and report the engine numbers as that is the real money issue in this case. Given what you've posted, however, I doubt the engine is an S.