I don't think that came from an assembly line. It looks to be a conversion and most likely starting with a truck and not a panel or burb. It has truck fenders on the back of it and not panel fenders look at the rear fender in this
Picture and then look at the rear fender on the woody and you'll notice the two fenders have a completely different contour. looks like who ever converted it did a really good job and was done many years ago