Landscape Gardener

Grafter currently has a client looking to fill a role with the following description: Did an extension.
Garden got damaged in the process.
Material All mine.
Need labour price.
14m garden in length would like that to come out 1.8m from the extension (600x600 slabs)
Then squared off into the back of the garden.
Drawing attached.
Would need a step to go upto garden due to the level of the garden with Sleepers.
See images.