e body vin #

I was hoping to get the vin off the car so i could do a used car search on it, to track down some of the registured owners, i talked to the shop owner were the car sat on oil drums and so far the story checks out, i am trying to track down the guy who bought it from the scrap yard after it was recovered, to get a letter to go to the court house with. The door sticker is not there, but i know my duster has the vin on the package tray, but the challenger doesnt, may on the frame rail or some where else?