As far as I nkow only the two runs of 250 and 251 by United, the one run by Precision of the 251, the brass cabbose, the siderod diesel done by Westside(?) and the Westwood passenger car kits.
Of course I'm working on the 36,38 and 40' 6500 series flatcars - holdup right now is trucks - all the other work is 98% done). Once the basic flarcar is done then other rolling stock will follow. This is all in HO scale.
I too would be interested in what is close but available. Lon Wall
www.Pacificmodelloggerscongress.com