A new diesel locomotive found under Decor / Misc. Decor and cost 0.
You need Ambitions and to place the package in both the mods/packages (Sims3 ) directory and in the "The Sims 3 Create a World Tool/ Packages" directory for the item to show in your game. There is an earlier post explaining how to install items in CAW.
Importing packages into CAW
Make sure that the XYZ co-ordinates match the grain hopper wagon and the locomotive.
This makes up the complete set with the grain hopper.
Diesel locomotive (MediaFire)
End of track railway track for CAW
The farm 3. grain hopper and railway tracks for CAW
Railway line crossing ramp for CAW