Hi Steve, welcome! You might to try on the Classic Toy Train forum.
Go to the very top of this page, point your mouse at Trains.com Sites, and a drop-down box will open up, and you'll see Classic Toy Trains. That forum specializes in "O" scale.
Also, Ebay might be a place to look. They have an O scale section as well.
Good luck!
Mike.
My You Tube
Where can I get the switch for the K-Line operationg sawmill? Or does anyone have a suggestion for a substitute?
Thanks,
Steve
Mesa, AZ