Help get my dad cremated

At 830 this morning my father Wade Oliver suddenly passed away. He had got diagnosed with lung cancer about 3 weeks ago and this past Tuesday got told that it spread. He had cancer in both lungs, his chest, and his hip, and his bones. His wish was to be cremated. We just got the call from the funeral home that cremation is between 4-5 thousand dollars and between all the boat trips to his doctors, my mom has no money at all. Any and all help is appreciated. Thank you - his daughter.