Wouldn't it be much cheaper to bus them to a place that doesn't cost much to live?

You probably could make a real nice camp on some dirt cheap woodland for 200 million.

Stack shipping containers 3 high, have one person live in each and have a shower block for every 15-30 residents. Cook cheap in large badges, get some teach for america out there to help them learn to read and write, require each person to spend a certain amount of hours working in exchange for food and housing...