help with BRC and CSX transfer cabooses

I need several HO transfer cabooses for my switching layout, as used by CSX and the Belt Railway of Chicago, amongst others. Does any firm do a model of one. If not, have there been any articles in MR, or scale plans anywhere, so I can scratchbuild a few?

I need several HO transfer cabooses for my switching layout, as used by CSX and the Belt Railway of Chicago, amongst others. Does any firm do a model of one. If not, have there been any articles in MR, or scale plans anywhere, so I can scratchbuild a few?