There are three private varnishes on the end of Amtrak #5(11). They are Iowa Pacific's Caritas, the Southern Pacific Birch Grove, and Pan-Am Railways business car ST 100. Reportedly these cars are all on a Pan-Am trip from Boston to Denver.
www.youtube.com/watch?v=435yh9o2gW8
www.youtube.com/watch?v=435yh9o2gW8