very nice. The only problem with printing the shells from your personal 3D printer is that the shell is too stiff too bend to secure the body onto the chassis.
My Trackmaster/Tomy/Plarail Photo Gallery Page (over 600+ photos and still under construction)
https://www.flickr.com/photos/183311600@N03/
https://www.flickr.com/photos/183311600@N03/