I own land that has an enormous amount of rock, both on land and creek all sizes. Also old rock walls scattered throughout. I would like to sell the rock without expending alot of capital. Was thinking about allowing contractors, or do it yourselfers to come, pick out the rock they want. and charge by the ton They load and haul away. What would be a fair price per ton, and what kind of personnal injury wavier would I need to protect myself from liability? Does anyone do this, or buy rock from this type of business?