You have a point here. I've just begun the build, so it's very incomplete. I've made some progress. Here are a few examples.
These images are early, mid and late construction of the ground level of WTC 4, 5, and 6. A couple of things are worth noting. A model is not the real thing. Minecraft, or any computer program, can only do so much, approach reality so closely. One of the limitations of Minecraft is that the blocks are one meter in each dimension. So things that are only a few meters high in reality are difficult to depict with Minecraft. Such as the ground floors of any of these buildings. So my compromise was to build something that evoked the nature of these small spaces without being an exact copy (because an exact copy is impossible to produce using Minecraft).
The reality with WTC 4,5 and 6, is that we will always have to resort to documentary evidence in order to learn about these buildings, because they do not exist any more.