North of Toronto, spent a day going around a bunch of tireshops. Some wanted $60 per bucket, some $20, some were ok with $5 per bucket. But I a few that will give the wheel weights for free. I gave them the homedepot orange buckets with my name/phone to put the scrap weights in and call me when the buckets are full. They say june and december are the times to pick up the buckets after the tire season ends. Some will have a few buckets for me some just half a bucket. But all free. I just done it a few months ago - so it is all there. The stuff I took home was about 30% lead wheel weights, after I sorted them, the rest zinc, steel etc.
Then I went to a marina and spoke to the owner, asked if he had any scrap boats with keels. He said he just got rid of one but has another and I can knock myself out cutting the lead keel from it. That would be lots of lead - all free, just some work needed.
Long story short - its all there, just need to look.
I just started collecting lead and already have all I ever need and a future supply too.