You do not have to do much digging. Choose to end points not too far from each other. Cut the lines on one end. Attach a strong string on end A. Pull the wires

You do not have to do much digging. Choose to end points not too far from each other. Cut the lines on one end. Attach a strong string on end A. Pull the wires from end B. Now you pulled the wires, and you also have a string that can be used later by another company wanting to use the tube (which you will sell btw).