School #2, if you want to play it safe. You've been there, done that; you can do it again.
Economics is a hard truth, but the distance between 29k/yr and 43k isn't terribly far. Jumping into an unfamiliar situation without any support can be scary, but it can also be very rewarding. If you're willing to jump, I think school #1 can also give you something more than economics:
- a life story
- build your confidence
- expand your network
- access to Ivy league people (whatever that means)
- access to Ivy league school resources (Ivy leagues schools are able to leverage top guest speakers and outside contacts in respective fields)
- distinguish you
If I was an employer interviewing the you that went to school #1 vs the you that went to school #2, who do you think I would pick? I would choose the girl from the south that had to sink or swim in a cold northern city while attending an Ivy college with a strong MSW ranking. School #1 has greater reward potential.