Thanks folks,
I should be clear he's already got the non-Lionchief "The Scout" set and some freight cars. He's 4 now and his Grandparents got it for him when he was born and give him a car each year.
How much benefit is their in one motor (as in the 44) vs two (in the FP-45)
How does the quality for the Low-end Lionel and Williams engines compare?