We visited Goddard in summer, it was hot and sunny, and the mockup had
Plexiglas over the side hatch, so attempting to get detailed interior photos
was out of the question.
I've compared the side panel (with the white dial) to another CM interior and
found it to be a very good match, and one can see guarded switches on several
other panel, so the controls and displays seem to be of a very high fidelity.
However, the couches don't resemble actual Apollo crew couches, either
in their construction or their suspension from the mockup's interior.