What have I got?

How do you find the VIN on a car that is missing the VIN plate? I believe what I have is 1967 Cuda FB because it has the two back-up lights on the lower valance, no clearance light holes on the rear quarters and no provisions for the snap on windshield/rear window chrome trim. I'm thinking someone has changed the front clip, deck lid, tail lights and dash to a 68'. I believe the VIN plates were on the drivers side front door hinge post on 67's. But nothing is there. Is there another place on the car that I can find the VIN?