The homeowner would like me to disassemble and reassemble (using existing block) correctly. They would like the curved section to curve out about 2' wider than it currently does.. then tie into the the side midway between the corner of the house and the basement window. Doing away with blocks running all the way down the side. I need a rough idea of the man hours involved in this project and approximate cost of materials.. stone, fabric, drain pipe, etc. Thanks in advance for any help!