How many pounds is a lifetime supply?suck it up and get yourself a lifetime plus 20 years supply.
you can find, barter for, or order mixer alloys to get you back to what your using now.
I could use 2-300 lbs of pure or near pure lead myself.
I cut ww alloy with it, swage it, make round balls with it and sometimes just start a small batch of alloy from 0 and work my way forward when I'm searching for something.
you could always mix it with scrap zinc ww's and shoot it if you have nothing else.