Hi Stephanie, " Sorry to read about you problem, but to be honest, I dont think there is much you can do about it. Because as you know mobile homes are premade in the work shop where everything is pre-cut and fitted together.
If you cover the outside it will always look bad, and the rain will always find its way behind the insulation, by the door and windows.
If you do the inside, you will make the rooms smaller, the ceiling lower, cupboards will never be right,
Two things you can do: Buy a new/good secondhand mobile. Move to a warm climate ( and that could be difficult) the breadwinner has a job in the area, and the kids like the school that they go to.