The problem with the TOS ship being larger is that the window placement doesn't agree with that theory. And assigning a scale to the TOS ship ignores that the size of the ship was set before the model was made and they kept the size. The model was deliberately built at a bizarre scale. And 1:96 is not a scale to consider. If you must pick an nice, well used scale, it should be 1:87, also known as HO scale. The actual scale of 1:84.726 isn't far off from that. That would be 972 feet... if you must have an exact scale. But rather than build the model to an exact scale, they built it to certain size limitations. The small model and the large model were both built to be 947 feet long from the very beginning. The scale was unimportant. All the measurements on the two models are in nice round measurements. Ease of construction was more important than what the scale was to be. The scale was arbitrarily because it was not tied to the size of the model. The model needed to be large for realism. It did not need an exact scale so long as it matched the drawings. Gary Kerr has not only gathered a ton of information on the model physically, but also a lot of its history. He is adamant that the scale was immaterial and the 947 in universe length and the 33.75 and 134 lengths of the two models were intended that way from the moment Jefferies put the designs to paper and sent them to be built. But 1:96 was never a scale considered. The size of the model and the size of the ship were set independently.