OK, about lead, I worked at leaded glass, church windows and such, construction restoration, for 24 years, almost every day, small cuts from glass, handled lead every day, old lead, new lead, what you do is constantly keep hands clean, wash them, do not inhale fumes when soldering, or melting, keep hands off face, out of mouth, after I did this for around 15 yr or so, got curious, went to hospital
got scanned, checked out, all fine no problem. So made me believer in cleanliness.
But my boss, owner of the company, never kept his hands clean, handled lead with small cuts on hands, got lead poisoning after about 20 yrs of carelessness, he also got histoplasmosis, from rooting around old church windows and being in pigeon shit all the time, now he is in a nursing home in a vegetative state, but he was careless for 45 years, just be careful, stay clean, u b OK.