Over in TrainOrders, one of the regulars has created 48' containers from cardstock; you may have seen his, or others, already. He sent me the template, and I have since created fifty-four of these; many 48', but I also shrunk down the template so I could create 40' containers as well, which is more in keeping with my era. Some are based on prototype; others are fictional/freelance, some even "protolance". I'm posting four pics as examples. In the first pic, there are three plastic containers; the rest are from cardstock. All containers in the wellcars are cardstock.