I am just starting out and I have someone who wants me to remove their existing grass as well as preping the soil which is very compacted(yard is 40 years old)they want sand and compost added. They also would like sod added afterwards. Do you charge at price per Sq yard seperately for the Grass removal/soil preping/& sod installation or do you charge a lump sum per sq yard. And what would you charge. The home owners yard is about 1300 sq ft. thanks for your help! any extra tips would be appreciated.