just print a longer coupling from the 3D printer lol. Good luck repainting it using sharpie. I think spray paint is the only way to do the trick.
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/