This is a product overdue, and would sell well. Amtrak now has a larger fleet of these in Baggage, Diner, & Sleepers.
I met Mike Wolf last summer and presented him with a packet on these cars and why they should be made. I told him that every Amtrak MTH set ever made could add these cars. He said "we have sold a lot of Amtrak over the years."
Maybe Atlas could make these?
Whoever makes them, I am in!