I found this link, www.trainweb.org/marcrailfan/dodxflat2.html.
Only problem for the HO modelers is that there are no trucks available that are a match or even close to the prototype. ...... but the again the trucks are and issue.
Nice link Ken, unfortunately they have an older enclosed style roller bearing, where as the DODX flats have an exposed style.
They ain't cheap but they are available:
http://greenwaybrass.com/s_87_trucks.shtml
and I can't tell if they are an exact match to the DODX buckeyes, but I caught these yesterday:
again, depends on your definition of close. If you want buckeyes, this is it. If you want to be too picky, you get to do without.
Good news, Union Terminal Imports is developing the car you're looking for
http://www.union-terminal-imports.com/
No kidding hey? I might order one or two, just because.The bad news is that it's gonna cost a small fortune just to make a respectable length train.