The only public school on your list that promises to meet 100% demonstrated need for OOS is UM Ann Arbor. At the other schools, there are no full rides unless you are throwing long, you have a mean rushing/passing game or you are hitting nothing but net from the 3-point/top of the key.
Even on the off chance you got full tuition (slim), you would still be responsible for room and board. After your Pell grant and loan, you still need $$ for fees, medical (because most likely, you may not have adequate insurance for them to waive the requirement), you need books, start up cost and transportation to get back and fort. You are putting an unnecessary hardship on your family if they don’t have the means to pay.
While Tufts meets 100% demonstrated need, they are need aware/need sensitive, which means your ability to pay will be a factor in the admissions process.
I hope that @katwkittens comes on to this thread. She moved cross country for her amazing accomplished kittens could be in-state at NC. Her children have fared extremely well, even going to med school.
I think that you are beyonded blessed to have this option and that you should run with it. Are you really willing to risk your grear opportunity when you have o guarantee that your "dream’ will work out
Are you really going to tell UNC that you are deferring so that you can try to get into Colby? What will have really changed from last year. They are going to review your old application against your new application, unless you have done something substantial, do not expect to get into Colby ED, where over 60% of the pool is hooked (legacies, Athletes, Developmental admits, Posse, Questbridge, high achieving URMs that they want to lock in, full pay international students or anyone else that meets the institutional mission for next year).