I have a Atlas O Industrial Rail Train Set a 3 Rail, and I was wondering what I could sell it for if I do decide to sell it. I believe everything is there to it, there is a slot where it looks like something goes, but on the picture on the box all the cars are accounted for. Didn't really see anything on the contents side of the box either. Anyways might sell it, I would like to know what I could potentially sell it for. It's a Utah Poultry Cooperative Special.