@PRR1950 posted:Lee,
The print out of this plan actually looks like it shows the Lionel track numbers for most pieces of track. Just check a Lionel Catalog.
Those 4 digit numbers appear to be MTH Realtrax part numbers.
If you do a goggle search. Putting a 40- **** will give you the exact dimension of each piece.
You'll probably have to make some adjustments as some of the MTH track pieces are not offered in fastrack. I.e. o-42 curves.