Rig for heavy 2-line kites

This is a rig I designed and made for flying stunt kites too hard-pulling to fly from a standing position. (The tiles are 1' square for size comparison) The rope is 1/2" (13mm) braided nylon and the pulley is from the main sheet of a largish sailboat. You fasten the pulley to a sturdy ground anchor; hook the flying lines to the loops at the left; pick up the loops to the right and fly. (You will need someone to launch the kite.) This puts you out of the line of fire if the pulley breaks or the ground anchor lets go. Suitable for up to about 500 or 1000 pounds pull.