Similar story. Well before this service was provided for $50 for anyone who wanted the info, law enforcement could run your VIN through the NICB (National Insurance Crime Bureau) and find out the original dealer info. I had a friend who knew a policeman who would do this for him. He had my VIN run and came back with Emerson Chevrolet in New Hampshire as the original dealer. Made sense since I am in RI, the car was traded in to Scuncio Chevrolet in RI, by a military man stationed in CT.
Because I never got any actual paperwork or documentation from that NICB report, when these ChevyMuscleDocs services became available to the public, I sent in my $50 and waited. Sure enough, that report stated my car was originally sold out of The Varnell Chevrolet Company in Tracy City Tennessee. And with some help from a friendly retired private investigator who saw my Craigslist "wanted" ad I had posted in TN, looking for the original owner or info regarding the dealer and my car, he thought he knew the car, and the right people,.....and sure enough, he got me into contact with the original owner.