Someone told me that one of the greatest expenses ranges have is in controlling ventillation and any possible issues with airborne lead and mercury compounds. For as infrequently as I go (so far about 1 hour a month), I'm not really too concerned.
As far as residue on your hands, I think washing with soap is all that is needed. While injestion of lead is never good, trace amounts are not going to kill you. Just my $.02 worth.
And that after this is accomplished, and the brave new world begins
When all men are paid for existing and no man must pay for his sins,
As surely as Water will wet us, as surely as Fire will burn,
The Gods of the Copybook Headings with terror and slaughter return!
- Rudyard Kipling, 1919