For this modification, I used a black sharpie (king size) and a silver sharpie (for the ridge line). The result is pretty good. The paint is glossy . If I find several cheap brakevans on ebay, I may do several more modification.
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/