Perth Mint is normally pretty cheap but are a huge pain to purchase bullion from requiring post office I'd checks etc...ansile is dearer or ABC bullion... I like 1kg or 10oz bars... Good luck with your silver stacking..the fiat debasement will continue unabated so physical silver which is real money and a very very important industrial metal will only appreciate in price going forward...inflation/unabated world printing is going to utterly destroy your current fiat dollar purchasing power... Move that dirt...