How about a switcher with B-1-1 trucks? This would be a good way to place an old junker around a scrap yard or locomotive shop, rather than hidden in a junk box.
Charlie
Hmmm, something looks familiar with that loco. It's probably not a CNW, but if you remove half of the front, make it a 0-4-0 switcher, put the grill plate on the front, and put a really odd fan on the top, it might just look something similar to a certain type of switcher with no prototype at all...