As a major fan of both Worm and Stormlight, I'm glad to see this. I'm going to say that you should probably have more in mind than just those starting points. What form of story are you intending to tell? How will Lift's entrance in each of the three ideas affect things, and what would change from there? Who will be Lift's major allies and enemies on Earth Bet?
If you want, I can PM you my Discord information so we can hash this out.