SO ,,,,
I'm thinkin the best and by far safest way to get lead from that battery is this...
My local scrapper is paying $12.00 for used car batteries. At an average price of $1.00 per lb. for processed lead I would be getting near 12 lbs. of lead using the money from the sale of the battery. No hours spent trying to recover lead, no cost in time or matierials smelting and fluxing the lead, no medical bills or final resting place exspenses incurred from processing toxic matierials, just a smooth, easy, and cheaper way to get to the bottom line...