Disabled mother lost everything in RV fire

When trying to start her RV, the gas line began spurting gas and caused a fire to break out in the cabin of the car with my mother and I inside. A few explosions later it was completed engulfed along with 2 vehicles on one side and leaving the 2 on the other with slight fire damage. My mother made it out with only some second degree burns on her hand and arm, but everything she owned inside was engulfed. While most of these things were irreplaceable Momentos, from her father's ashes to her mother's photos, a lot of the other things can be replaced and I would love to help her build her life back up again after this devastating event. She is disabled, with one leg, osteoporosis, and a recently untethered spine, her disability income is barely enough to pay her rent and we know we realistically will not be able to afford to replace anything she lost, pay for the damages, on top of the burn unit visits and medication for her wounds. Any help at all would be immensely appreciated by her, myself, and my younger brother all trying to help her cope with the loss. As of writing this I'm not sure how much the exact damages cost and will adjust the goal as I hear more from official sources, I know we won't ever reach this goal but my mom always says to aim for the moon, and if you miss you'll land in the stars, and we could really use some stars right now.