I definitely don't want to step on anyone's toes, so..
If Dean wanted two of the 5 packs, take care of him first, by all means. Make whatever deal you can. .
I'll take my set to PA, and if they don't sell, you'll be the first to know. And if you only need four cars, I'll sell you the four cars. Cost plus shipping. If the set sells, well, then I'll try to locate the others you need to fill in the set.
Sound fair?

And I'm sure we're all going to be looking for the other series anyway. Who knows what will show up!