Roadrunner or Not

I haven't had a 68 B body since 1988 but http://www.mmcdetroit.com/ says the 68 B body might have a VIN on the truck lip but not the radiator support.
I agree a 68 A body has no hidden VINs, and MMC is not clear if it is a SO or VIN onbtye truck lip of a 1968 B body.
Can anybody figure the VIN from the SO? Seems like Chrysler would have those records for law enforcement purpose.