Hey all. I have lined up a job for laying down mulch in 6 different beds throughout a property. They wanted also for me to remove the river rock that is already there. The problem with this is, I have NOOO clue what to charge, or even how to charge for this. There is about 650 sq ft of rock altogether, according to my rough measurements. They never laid down a mat, so half of the rocks are buried in the soil. Are there methods that can help me get it done faster than by hands and buckets? i'd like to just go in with a bobcat and dig it out, however they want to keep the plants in the beds. Any help is appreciated here.