I just came back from a small train show in Gilbertsville, Pa. My first time there and I picked up a MIB K-line Earthmover construction scene. The action is the "earthmover" moving back and forth. The issue is the very small "earthmover" which looks like a cross of a front end loader with a snowplow attachment. I would like to replace the toyish OEM "earthmover" with a 1:50 scale front end loader or backhoe.Has anyone done this to this accessory or to the Dump Truck construction scene?