Side note, but if you're trying to sell off this stuff, you better do it soon. Train nuts like this are a dying breed. Probably will all be mostly worthless in a couple decades, along with commemorative plates, or the "good china" your parents never use.

Market is hot(ish) now though, or was a few years ago. A friends dad died and he had trains. We helped ebay all of it. Owned a toy store or something, lots of rare stuff (like window displays). We even had a guy buy one of the rare posters, return it for questionable reasons, and then start selling counterfeits. Even so, the grand total wasn't a ton of money, more within the "worth doing" category.