I got to see Shep's diorama up close at the World Figure Expo in July 2017. The Military Modeling Society of Illinois, Shep's home club, hosted the show. They staged a display of his work, and that was one of the pieces on display. I took some (mediocre) photos:
We have to remember that at the time he built this diorama, he had to use the -J and convert it back to a -D. Monogram had not yet released the -D kit. Shep used it as an opportunity to talk about vacuforming the greenhouse nose.