I'm pretty confident about my prices but this one job I'm bidding is larger than I'm use to. 18,000sq. ft. 4" topsoil @ 225yds. Hydroseed 4 man crew will be on site 2 days work pending on delivery of soil. Would like to what you would bid with cost of equip., labor, and your mark up. The homeowner is taking care of flowerbeds so all we have to do is bring in soil, rake final grade and, spray with Hydroseed. Also, are my caculations correct for the topsoil?