Garden Labourer

Grafter currently has a client looking to fill a role with the following description: Installing drainage into back garden.
Dig trenches in lawn approx 200mm wide x 300mm deep for perforated pipe. Around 20m total length. Add fabric and gravel, replace topsoil and turf. Dispose of excess soil - possibly skip?
Pipes need to run to a soakaway, around 1200mm x 1400mm x 1000mm deep. Most of this hole is already dug, maybe an extra 200mm in depth would need to be dug out. Put in soakaway crates and wrap in fabric, backfill with gravel. Dispose of excess soil.
I have the perforated pipe, the soakaway crates and the fabric. I do not have gravel, probably need 2 bulk bags of gravel.