it will be the whole setup, an ongoing process most likely
Manny Patinkin {He plays Saul on "Homeland" and Montoya in "The Princess Bride"} has a huge model train set up in his basement.
as he goes along on his continuous building he adds pieces and parts of people and places that are important to him.
his mother loved to cook so he added a diner named after her.....and so on.
I think that's pretty cool.
....Ahh, Josh I don't think that's a good idea for you...you'd probably have dolls tied to the track, broken bridges, trains off the tracks, explosions...