The parts in this model are designed to be fitted onto the Parkwood N-gauge Warwell (kit 14) to convert it to a six-bolster wagon. Many Warwell wagons were converted in this way. Because the parts are separate and the Parkwood chassis will need minor modification (particularly to the planking) to fit them, careful reference to scale drawing and photographs of the real wagons will be necessary to complete the conversion. You can get the Warwell kit from the N-gauge Society shop.