Need to dig in narrow rocky land

My yard is of similar size, and I had the same problem: rocks, concrete blocks, and trash. With no previous experience, I rented a Toro Dingo with a few different attachments.

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The attachments I used were:

• Soil cultivator. I used it to till old grass down into the ground, since I was planning to lay new sod. It tilled grass and weeds far enough into the ground that they did not resurface.

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• Leveler. I used it to, well, level the ground. As a side effect, it brought rocks and trash to the surface so I could pick it up easily.

• Standard bucket for enlarging a large hole (in order to bury concrete blocks), moving large concrete blocks and rocks, filling the hole, and otherwise moving larger amounts of dirt.

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It took me about eight hours for a yard of about the same size as yours. That included adding 20 cubic yards of new loam on top. The rental charge was about $400 including delivery and pickup. It was reasonably easy to make the yard flat, but much harder to make it level because I didn't have any level ground to start from. If you need your yard to be level, I would recommend hiring someone.

With only 15lbs, two screws (one on each side) ought to do just fine. Just drill into the mortar with a hammer drill and an appropriately sized bit, then use either a sleeve type anchor with the screws, or you could just use a couple tapcon type screws as well.