I am loving these ideas! Building on the idea of a cult of sun worshipers, what do you all think about a race of plant people? We could look at the sun like a divine seed, who's light is like roots and the earth is the flower. I really liked the idea of a ritualistic birth of the sun, and as plant people we could treat it as a seed that needs to be planted in the sky.
Also, I have a sewing machine, so I could help sew costumes.