Add this to the list of "gee, I wonder why they haven't made one of these" model RR pieces, particularly locos.
Now, actually, I've never heard of the engine, nor have I ever heard the word "Skookum" (had to look it up), to my recollection, so I didn't "wonder why" in this case, but a basic (but easily upgradeable, for guys like me) small "027", if you will, articulated is something that I've brought up before. I'm sure others have, too. Always seemed like a niche that Williams (not WbB) could have filled.
I do think that a small but generically plausible 0-6-6-0/2-6-6-2/etc would be a bigger seller, as there were more of these than 0-4-4-0/2-4-4-2 types, but I'll grab a "Skookum" if it shows up. I'd bash it into something else, I imagine, as Pacific NW logging is not my thing. But - lots of logging in my part of the country back in the day, and lots of little funky steamers, so I imagine that it could be good bashing-fodder.
You should have posted a photo:
