I am not sure if this has been discussed, but what happened to those last few high level coaches that were used on the heartland flyer until 2007? Did Amtrak scrap them?
I think you'll find your answer (and pictures) in the AU thread linked below!
Many of the former Santa Fe Hi-Level coaches which were used on the early Heartland Flyer..... and a good bit of other rail passenger rolling stock..... are at a used rail car dealer across the river from St. Louis. Apparantly available if the price is right!