Here is a variation of an 8'x8' D265 Super O Dealer Display Layout that I built in 1989 for a Christmas Festival at Bear Mountain State Park in NY.
Thats my Dad and I. We ran the layout and gave out Lionel Catalogs every weekend between Thanksgiving and New Years.
And these are photos of the same layout various years later, set up in my basement.
This layout was a lot of fun!!!