I wasn't exactly sure where to post this so please feel free to move it to the appropriate section. I have a customer who wants me to remove lava rock from an area approximately 100' X 3' X 2-3" deep. I cannot think of a more miserable job so I wanted to get some opinions on what to charge. I am figuring 1 or 2 people with hand tools. Also, once I have all this rock in my truck..........what do I do with it? Thank you for any opinions and advice, Joel B.