Help with dangerous mold

As most of you know, I live on a small farm with limited income and resources where I'm trying to build a sustainable homestead. For the past year, we have been dealing with a severe mold problem in the bedroom, bathroom and closet of half the house. We have already removed all the carpeting, cleaned mold off all the objects in all the rooms, cleaned all the curtains, blinds, and upholstery, had professionals in to inspect the house, and heavily treated the floors and walls.

We thought we finally had the problem under control, but unfortunately, the mold returned this winter despite all our previous efforts. And it's making my best friend sick. A week ago, he was so sick from mold exposure he had to go to the emergency room because he was coughing up blood and could barely get air in his lungs. We've purchased a dehumidifier, which seems to be inhibiting even more mold growth, but it can't undo the damage. Everything he owns is covered with mold: all his clothes, his bed and pillows and blankets, etc. So now we have to go through the painstaking process of de-molding all of these things again, and then we need a safe place to store them until we figure out a solution to this potentially life-threatening problem.

That's where this fundraiser comes in. We need an immediate solution so that my partner does not have to move to a different state or risk his health. After some research, we decided a shipping crate was the most affordable option. It will provide a mold-free space where we can store all his possessions and, when the weather permits, he can even sleep there to have a break from the constant mold exposure.

Additionally, once everything is eventually better, the shipping crate will continue to be useful on our property in the long run for farming purposes.