I am so sorry to hear this. The lead issue is horrifying.You're welcome. Glad to try to help.
The house I grew up in with my two siblings was built in 1950 and had copper plumbing (with lead solder). Both of my siblings became mentally incapacitated in their teens and both were diagnosed with paranoid schizophrenia in their early twenties. I don't wish that family disaster on anyone.
There is so much useful information here.