you may able to score one at a small toy store. That's how I found a Thomas knockoff set. The engines are too high to clear the trackmaster tunnels. The motor design shouldn't be compatible to trackmaster.
I created a page dedicated to the knockoffs.
https://www.flickr.com/photos/publictran...0671600302
I created a page dedicated to the knockoffs.
https://www.flickr.com/photos/publictran...0671600302
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/