You got your script, storyboard, characters, props and other stuffs. What else do you need?
Well, I believe you will have more flexibility with this kit bash sets. These are not pre-made models. You have controls over how you want them. Append them to an empty scene and change it the way you want. Or, just append the base model from 'Original Version' blend file and do your amazing texture painting stuff.
Some of the models have very simple but effective material while some of them have hand painted textures. If you don't want to use them in any case (may be you are just better than me at hand painting thing), you can use the base models from 'Original Version' blend.
I did not use all the models in my promo video. After you watch the demo, you will see that you can have much more flexibility with this pack. I will be adding more kit bash assets in future updates.
And in individual blends folder, you can have separate blend for different category as listed below.