I agree with @4kidsdad, it will be a reach because of your GPA.
Legacies aren’t guaranteed, especially when it’s not your father or mother. You are relying too heavily on that and are trying to convince the posters here that you deserve a spot. No one can REALLY chance you for Stanford because Stanford is a reach for everyone.
You say you had an EC in freshman year spending time working on an Eco system. Your GPA was 3.0. The adcoms will look at that and say, well he had a personal family issue, so the freshman year is scratched but he was able to work on this project?