I personally would not take Sherberth...construction of a new resort is happening on that road and you never know what you might run into. I would take 192 to World Drive. It might be overkill, but I would give myself at least 35-40 minutes. This would allow time to get through the booths where you pay to park, as well as time to either catch the tram or walk to the entrance and then get through security bag check.