Moonman,
I own a vintage Lionel booklet from the 1916-1920 era. In it are quite a few track plans and diagrams for Std Gauge & O-Gauge. What makes this booklet so unique are the track plans. These are given for both Std Gauge & O-Gauge. With each track plan a detailed list of track required, the overall dimensions of both Std Gauge & O-Gauge. Also, number and type of switches. Given the era in which this booklet was available it covered a lot. My personal information is in my profile.