Is there a hotel or agent offering coach service from shantou to shenzhen?

I want to take a coach from shantou to shenzhen this sunday, 22 Aug. I carry a luggage, and i am looking for a coach service that is comfortable and convenient. I do not mind paying up for this service. Is there a hotel or agent offering this service. How much, and how long is the trip? where do i get off in shenzhen?