I'm thinking of living in the USA for 6 months with a tent and sleeping bag and eventually buying a car to live in. Do I have to prove to the boarder guard that I am able to support myself? Is $1600 a month enough for that? Will they ask questions like where am I staying - and will it matter when I tell them I'm going to live in a vehicle or on the street? And if I get a vehicle will they let me live in that and still cross the boarder? Any help would be appreciated. Thanks.