Good one Bob!
Ok it's obvious (to at least some of us) and from the Harry J. Garrett & Co. ad Rusty posted that somebody (maybe plural) assembled Carey's examples of those sets with E-unit sides. It happened, and does not change the design provenance of that nose casting- it's the BLW 2000 DR-4-6-20 and not some poorly rendered EMD nose and cab.
Furthermore, again, fabricate the correct sides, get the right trucks under it and roof (note roof in the advert looks like EMD as well) and you could have a somewhat rare if not unique model/doorstop.
Since I model NdeM, I'd certainly be interested in one of those.
