I'm beginning to realize that the thread title could have just as well been "3 dilithum crystals to power the TOS Enterprise?" (
) but please continue, by all means.
There is just another Season Three engine room oddity I wanted to mention:
Shouldn't that wall with the yellow cabinet (holding the "trident engineering device" in "The Ultimate Computer", seen in "Elaan of Troyius" when Kirk tells Spock to get ready for a Vulcan Mind Meld just before Kryton commits suicide) be facing the cathedral?