As mentioned before, the 2001 models I had found were lacking in some ways. Some had issues with the texture maps which was where most the of the details were and other just lacked details. While I am still not trying to be super faithful to every details, it did bother me that a couple of the images were just too simple and slapping on a bump map did not really get the images t where I wanted them. So I kept some elements and made over from scratch others. On the Discovery it was mostly changing the textures and making the main control sphere and the reactor and engines myself. With he Moonbus, it was a matter of adding a ton of details that were lacking. I watched the film again and it then could not just let my fun project stay as it was.
The top image you can see I added a ton to the rear of the sip, there was almost nothing there before which was why I opted to show only the front. For the front - here is a before and after, I think it's improved. It could probably still use some details from inside the cockpit but I think the blue light is better than the yellow.


The Moonbus had many more details than I remembered and so I added a lot more into the existing model. Not sure anyone would notice but me but since these were for me, that was enough to get motivated to do the extra work.