I am getting ready to start sodding a lawn here in NC that is a complete mess. Basically the soil is really very compacted clay (something an aerator wouldn't plug thorugh) and it has a large number of small rocks. There is not much grass, more weeds and crabgrass than anything. It is about 2500 sq ft. I have done small sodding jobs with prep-ed lawns before but I have no clue where to start with this one. Of course we need to go the most cost effective route. What should I do?