Dear Blair Plivelic,
Why don't you start by checking around to see if there is a chapter of Love, INC in your area? It stands for Love In the Name of Christ; they don't give amounts that large, mainly gifts of small amounts of money, diapers or other emergency things you run out of.
However, it is a place to start and with the church connections there is always a chance they could refer you on?
That is all I can think of...I volunteered with homelessness many years ago and Love INC was very good.