I like the idea of a fuel tracker tied to ship problems. Cigeus helped me revise my 5e space travel rules for Spelljammer: Space travel Spelljammer 5e
So the fuel for me is spellslots.
2d point of interest crawl is the way to make it manageable I think definitely.
I don’t incorporate sensors but I wonder if there is a way for me to do that with the Helm character.