Well, I found that I can actually add another 5 inches to the depth of the board making the "final" layout 58" X 112" (4'-10" X 9'-4").
This will allow me to add another freight station and a movie theater plus another track segment to my "yard" to give me adequate parking space for the passenger cars when I am running freight. I also pick up a lot more parking space at my passenger station.
I think that I will begin buying track for the attached.
'Let me now if you have any further suggestions.
Thanks.