Iowa Pacific is sellong 6 full length dome cars as a part of a sell-off of 33 locomotives and passenger cars. So, people wishing for a full length dome car to operate on a Downeaster train, NNEPRA and others have an opportunity to buy a dome car. Here's a link to the seller's website:
https://ozarkmountainrailcar.com/railEquipmentGrid.php?search=VFI
https://ozarkmountainrailcar.com/railEquipmentGrid.php?search=VFI