I just don't believe you can make something look as good as the Hatshepsut or Cain HTLs without taking a bit of artistic liberty and departing from what's simply on the texture. This becomes more true as the ship gets bigger. Take the Colossus for example, if you just modelled in the detail you'd get an unevenly detailed supersoaker that has a lot of armpit hair greebles in one or two places but just bare, flat tiling on giant stretches of the thing.
I was actually initially against the whole idea of changing things, but on seeing how great the Hatshepsut and Cain look, I just think that could never have happened if they'd just modelled in the texture detail and left it at that. Sometimes there's just not enough detail on the thing to extrapolate details from. I think some departure from the source material is needed, but to an extent that keeps the original ship's character, and doesn't just go crazy adding random greebles everywhere (which is what the HTL Orion did).