Hmm... The stage plan manipulation looks spot on for the "Assignment: Earth" setup, save for the minor detail that the transporter control console in the blueprint is at a 45 degree angle with the radial corridor, while the console in the episode is at a 90 degree angle to the corridor. That is, the wall angles look completely correct.
I see now that my update wasn't very clear on this point, but I do agree that the AE configuration appears consistent with the set plan. (I was misinterpreting the images when I first composed the message.) But the realignment apparent for LTBYLB looks to me like it will easily accommodate the full corridor, so I would treat that as "more canonical" than the earlier appearance, since it doesn't appear to require space to fold in on itself.