It is now officially only a large hill, and the good news is that there is very little clay left on display. This should make the site a lot more pleasant once the winter rains and snow set in.
Once the gravel arrived the driver kindly hoisted the bags up in the air and then slit them with a knife so that the gravel shot out of the bottom. It only then took another half of an hour to spread it around with a rake. Phew, and then a nice break with coffee and chocolate biscuits.
Still working on my greenhouse project, but its not above ground yet.