Okay i dont really do much landscaping but got a request to build a 5ft wide x 20ft long bed for someone that lives right in my area. He wants me to haul in topsoil and create the shape he has in mind. He only wants the top soil about 2ft deep to create a mound so he can plant some bushes and flowers along it to show where the property line is between his house and his neighbors. After that he wants me to come back and mulch this area. Sounds pretty easy but i have a few questions. Before the topsoil goes in do i need to remove the existing sod or put the top soil down and then create an edge? Also what is a good price for delivering, and installing the topsoil?