Hi. I have an uneven grassed area-4mtrs x 5mtrs which I want scooped up/dug up and taken away then I need advice on how to lower a manhole/and actually do lowering -simply scalp grass off and then take a ring of bricks out of manhole and put lid back on...it sounds simple lol. It will be a manual job I am thinking but don't know what options are available ??? I would like it done this month if possible.