I previously had the same feelings, & I’ve realized it’s more financially responsible to state in-state. I found a local state school that I think I’ll enjoy, for only 13K with R&B. This is in NJ, which is much more expensive than SC, so I’m sure you can find even better rates! Many schools here have the “preppy northern feel”. I’m definitely northern, although I’m not preppy. Visit some local schools, and see if you feel you’d fit in. Don’t let your OOS dreams cloud your judgement! You can always transfer after a year or two.
OOS publics definitely don’t give much aid to non-residents. There’s good schools in every state, I doubt every school in SC is a “lousy party school”. How do you know you “hate” every school? I doubt you’ve visited every one!
Good luck!