help with vin #

well I am going to get a bill of sale and have it notorized. going to have the title notorized. going to notorize his *** and anything else I can get but that car is coming to Ky. next weekend. I don't think there will be too much of a problem with just one number being off on it. one of my best friends is a P.I. and retired from the shefiff's office and I am getting him to run the numbers for me. I also know the local sheriff here so I don't think there will be a problem. I just hope the title and vin tag matches.