I have lots of ideas for stories, and i was actually learning DAZ, and Ren'PY, because they seem like decent tools to tell a story, if you can't animate, and can't afford VO talent. However, i've run into one of the same issues that you have: and that's lack of content in the DAZ store, that fits, visually, with what i'm looking for to depict things in my stories. Because of that, i'm working on learning Hexagon, in the hopes that i can, perhaps, craft my own assets..
On the story front: I really do like the universe you've crafted in these two games, and i'd be more than happy to give you some ideas, or even help out on the narrative front, if you're interested.