If you play with McCoy, you know about 20-40% of them will show signs of zinc pest, some completely broken away. I have 3 in my roundtuit pile, but replacement steam chests are nonexistent. I've contemplated a few alternatives, but decided to try the simplest first. 1 1/8" dowel cut to length. So far it seems to work, but I'll put a bit of run time on it to make sure it holds up. If all goes well, I'll make one for the other side and and then do my other loco's. I will paint it black, but wanted a photo showing the bare wood.
Steve