The non-certificated pilot said he flew his unregistered airplane for about 2 hours "recreationally" before attempting to land at a privately owned airport, where he said the airplane was scheduled to have an annual inspection completed. The pilot said a gust of wind blew the airplane off course while on final approach and he attempted to go-around. The airplane then stalled and impacted a field short of the runway, which resulted in substantial damage to the firewall and empennage. Though the pilot did not report an engine failure, examination of the airplane revealed both fuel tanks were empty and damage to the propeller was consistent with it not turning at the time of impact. The pilot reported there were no mechanical deficiencies that would have precluded normal operation of the airplane and engine. The pilot did not have a valid Federal Aviation Administration (FAA) medical and had a reported history of a stroke. The pilot's daughter also reported that her father was starting to show symptoms of Sundowner's Syndrome.