*LOL* Good morning, everyone! I'm about to take my beloved out of town to shop for shoes----apparently, the ones in Louisville don't fit right. Anyway, I'll be slow in responding for that reason.
Ben I, first of all, welcome to the forum. Let's separate your question into 2: what do I have, and what are they worth?
The best answer to the first question can be found here:
Use the bar at the top to shift from steam locomotives to diesel to cars, and so on. There is a number on each of your cars that identifies it----look up that number and you'll see a date and description for each car. That flat gray one with no number is probably a 600-series work caboose that goes with the crane. The crane is too long to travel by itself: the boom rests on the deck of that flat gray car.
Second---prices. There's no way to tell you what they will sell for. Right now, it's a buyer's market because of the economy, so selling prices are lower. The best indication is to find a similar car (again, by number) on ebay and follow it to see how it sells. A suggestion would be to do two things: first, make sure they work. Second, decide if you want to sell for a lower price package-deal to get rid of it all, or piece them out for months on ebay to try for more money.
It's possible I'd be interested, though much of my spending money is tied up in the whole moving thing, right now. What I'd like to do is talk to you further about it, but my day's gonna be tied up away from the pc. Just so you don't feel I'm taking advantage of you, let's continue the discussion here in the open, and I'd encourage anyone to disagree with anything I say. If we get to talking about me buying stuff from you, we'll take it to pm; no one besides us wants to wade through posts about how to ship and so on.
Best of luck with it,