@Keith Bliss - those are some nice "trailer on flat car" (TOFC) wagons for a great train. Some words of advice. If you shop "used" at the train show, be a little careful and check both the trucks and the knuckle couplers that they work, they sometimes are damaged and that can lead to a frustrating tendency for your train to "break" as you pull it around your layout. If you shop box cars, be aware that they of all things can command wildly different prices depending on some rather obscure details that set off a "rare" variation. I would suggest at this point, stick to the common ones, they work fine, will give you lots of operating enjoyment and are much easier on your wallet.
Good luck and good hunting
Don