Steve, Here's a few more tidbits that you may find helpful .
If you are looking for a certain vender and do not know what hall or where they are located , you can go to the large hallway that is located between the Silver and Blue hall . There you will find the layout maps of all of the various halls . These are taped to the walls behind the UPS shipping station .
If you find that one treasure that is too big to bring home an a airplane , Ups will package and ship it out from right there . I have never used it ,so I do not know how economical it is .
The Silver hall is the heart of the operations , there you will find the registration desk and public address system . There is also a list of door prizes that are taped on a wall .Check and see if your TCA membership number is on it . If it is , you won !!!!
The Black hall is where the operating layouts are .Spill overs are all in the White , Orange and Purple halls .
There is a cafeteria style restaurant between the Red and Black halls in addition to all of the various food trucks on the grounds . This is where the standard gauge breakfast get-to gather is .
I hope that you have a wonderful trip . Jim