I included two versions, tractor006= is normal with all closed paths, tractor006~ is a new style (for me) with single line open paths.
I included 2 DXF styles, the DXF folder contains my normal DXF with all polyline segments, the DXF# folder has DXF with arcs which is new for me and has not been tested on many platforms yet.
I've been trying to improve the sort order, directionality, and start point locations, but that is prooving to be quite difficult and still not turning out quite as good as I'd like.
Feel free to use these, but please do not share elsewhere, unless you keep the zip file intact and give credit to SignTorch.