Help with first downpayment to start business

HI kind people for reading my post,

Its not usual and normal for me to ask money, but my family is new in United States of America and we are going through hard and very long process of political asylum in order to get secure and happy life to our children. As of now we are living in Florida and my husband is making his best to earn money as truck driver. But due to his not good health situation current salary is almost cover rent, bills and food. But he is working for another man and understand that the only way to get on next level is to have his vehicle and work to himself. In order to purchase the car (which is around 20K$) we were looking to get auto loan, but we have no credit history in this country and the only way is pay 50% downpayment. Otherwise no bank give credit for downpayment as we do not have credit history. This is circle from which we can't find the way to escape. We have no any relatives or good friends here and nobody have possibility to help us from our native country. We will very appreciate for any some to help us build family dream to happy life.