Adding to GG1 4877 above, MTH's 1999, Vol 3 catalog, listed the following;
EMD Demonstrator E8s ABA #20-2206-1,
Matching 5 car Passenger set #20-6534,
Matching 2 car Sleeper/Diner set #20-6634,
And in 2000, Vol 1 catalog,
Matching Vista Dome car #20-6734.
It makes for a beautiful passenger train set!