I wish you good luck with that :) I know personally I want to do something similar but with Kypiq/Neran, which I have dubbed Neriq

Just to help in your endeavors, I wanna make sure you are aware that Inbreeding won't mechanically cause any negative effects according to the developers intent at this time.

Hope you find enough people, but if you are a smaller close knit group inbreeding is only weird to the players, not the character :P