need your opinion on this 68 car

thx for the imputs fabo members. keep it coming. my challenger is not undercoated so i am unfamiliar with the process. pic #2 shows the coating sprayed on, what looks like everthing, but not up the side of the pan. this is what makes me think the undercoating is original. any other thoughts? if the seller and i can agree on a price, i will have someone look at it for me and take further pics. there doesn't appear to be a fender tag on the car. on a-bodies, where are the body numbers? for authenticating.
it doesn't appear to have had any front end accident damage, and the drivetrain is not all that important to me, but i would like to know the car is what i am being told it is.