Waaay undersized. And I won't even go into the transport of solid fuel stages nor empty NASA missile and rocket liquid fueled stages transported by rail. Especially with no containers or even covers.
Well, yes I did. That was my first train around '63. I also lived around a lot of railroad tracks and saw a lot of real trains. One that came through my backyard every day until the mid-70's.I just can't play into the toy O scale rocket fantasy. Sorry.
I guess you never grew up with Lionel Postwar trains in the fifties & early sixties.