If you don't have a train case, I would seriously suggest getting one. To make it easy on you I found a few on etsy that looked like they were in decent shape and most of them come with a tray. Some people don't care and like the extra room without it, but I find it a must. Below is a snapshot of the etsy treasury I put together for you. As an added plus, there are 2 of the exact same case I have in the listing. FYI, decent train cases don't usually stick around, especially with a tray, so if you find one you like don't wait too long to get it!
|Train Case Treasury|