Share a ride from Norfolk to Chincoteague 7/30/17

Hello!  My granddaughter (10 years old) and I are flying into Norfolk and are looking for someone wanting to ride share to Chincoteague on 7/30/17.  We prefer not to have to drive and thought pricing could benefit others who feel the same by sharing a taxi.  We could also share a ride on the way back.  Let me know if this may be a possibility.  Thanks!