I feel your pain, I know you don't want to hear this but this scenario comes up about once a week here. A guy doesn't get a survey, does his reasearch afterthe sale and discovers problems. At this point you'll be lucky to get the title at all, the year being off is the least of your problems. If this guy actually comes up with the title, count your blessings and enjoy the boat.
ATTENTION ALL PROSPECTIVE BUYERS !!: GET A SURVEY
Just for the record I'm not a marine surveyor