Bus/shuttle/trolley quote please

Our hotel is providing a shuttle the morning of our wedding for our guests staying there. Our reception ends at 5pm & we would like to have an afetr party at a restuarant right up the road. But hotel will not pick our guests up there afterwards (annoying).

SO, what is the ballpark for a bus to pick my guests up at Atlantica at 5 pm, bring them to Dockers on Dune Road (2 miles away) for 2 hours or so and then back to their hotel?

Thank you!