If you have a pickup, you can get compost from the city at a low cost. Unfinished, still hot compost used to be $10 a truck load. Finished was more, but not dreadfully high. The dump where all the yard waste goes...I can't remember the name of the road, but if you call any of them they should be able to tell you. When we started our garden, it was pacing ground for a horse and was rock hard. We put down newspapers and fresh horse and cow manure and a couple truck loads of that compost in the fall, and it was ready to plant in the spring. Although I never till anything. That's what worms are for.