I wouldn't bother putting yourself under too much financial stress. I was in a similar situation to you a few years back, only i'm a UK student who was accepted to a university abroad. The UK doesn't provide any financial support for its own students if they study abroad, annoyingly, unlike most of the rest of the world.
I decided to just roll with it and see what happens. The costs were nowhere close to what you've mentioned in your OP, but I spent the money that I had managed to save on tuition and accommodation fees for the first year. After realising that staying wasn't financially viable, I had to return home after at the end of that year. It was an enjoyable year in truth, so I don't have too many regrets, but I suppose in the long run it set me back both time-wise (as I wound up applying to UK universities a couple of years later) and financially.