Thanks GunrunnerJohn, you are correct. Even though the my guests viewer won’t be able to see all the details I found I really enjoyed the process of researching and building the interior. And now as the RPO rolls past me down the track, its interior lights pick up the warm colors of the cars stained wood floor and I smile knowing the details that went inside. :-)
Also you have a fine photographic record of the interior and the work you did on it. I have kept a photo album of the few cars where I have put in detailed interiors, including the historical research I did on the prototypes.
I have seen true O (full) scale passenger cars where the roof is removable and so the interior can be seen complete. But realistically that isn’t possible with the vast majority of 3rail cars.