New box for the PRR S-2 6-8-6.
The original box didn't come with the engine so I got a blue one from re-boxx that is very close to the original blue box from Alco models.
Comes with two plastic sheets.
A 'basic' engine/tender shape is easily removed.
And then the small 1/4" square foam pieces can be removed to fit the engine.
Each 1/4" piece has small 'nibs' holding them to each other. I used some sewing scissors to 'initially' cut the top 'nibs' and then able to remove the foam to shape the engine.
Found a label on the web and printed it, covered with gloss lacquer and used some spray contact cement to adhere it to the box.
This size box is $36 plus $10 for shipping (very reasonable).