If SUNY Purchase is too far away (or not to your interests), then you may want to add in SUNY Westchester Community College as an option where you could commute from home, and then transfer to a 4-year university where you would only need fewer years to pay for living expenses.
I’d also reach out to U. of Maine to see your likelihood of receiving the Presidential Flagship Commitment scholarship and what size. Of course, you’ll never really know unless you apply, but if they give a full-ride to National Merit Semifinalists, you definitely seem of at least a similar desirability.
Other options where I think a full ride is very likely are not within 6-8 hours of New York. If you change your mind about locations, let us know.