I tried a goggle search for your topic and only came up with reclaimed brick suppliers in your area, which isn't going to be what you want price wise.
Maybe call at your local merchant and ask the question re 2nds, that said i doubt there's going to be alot of price difference between 2nds and basic cheap end bricks, as for blocks i can't remember seeing 2nds for ages now but i haven't been looking for them so they might still be avalible
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