I would call the limo services to see which ones are available for this trip. It is roughly 90 miles and you will most likely have to cover their return costs as well (since they'll be empty). My guessestimate would be about $150+, but things might be cheaper in Orlando. If you drive, it is really a good idea to have a rental car in Vero Beach if you plan to explore the area. A car rental will probably be cheaper than the roundtrip car fare.