I won a Lionel 14532 Century Club II PRR AA Sharknose and matching 24510 B unit on eBay two weeks ago. Problem was It did not come with the original boxes and I was concerned about crushing the antenna on the A units. Several years ago my granddaughter had a very nice box that her school supplies came in and I asked if she could get more boxes like it. The next day when I picked her up she had 4 more and 4 more the next day. These boxes are very sturdy and just large enough to store an ABA set of diesels or a mid sized steam loco. You may be able to find similar boxes at a elementary/middle school near you. Attached photos of the box and the partitions I added. j