I would also do a google search on L&N Cabooses. as Wright Track stuff isn’t that cheap. Also check AMB, American Model Builders, I think they may have the caboose known as the “Woodie”.
What I have done for some of my Southern cabooses, is to turn something not quite close enough, into something closer by some simple kitbashing. While they are not a perfect match, they do convey the feeling that it is a SRR caboose.