Just so you know if I sold my bitcoins & spent all the fiat on silver (looking at the price of around 1kg = £500) Id probably fill a couple of large cargo trucks.
You can fit a million dollars of silver in a small broom closet stacked to the ceiling, so if you could buy "several cargo trucks" of silver you would be stupidly rich already. You probably also can't even find several cargo trucks of silver for sale. Not even from the Crimex. If they're forwarding all these EFP contracts to London, do they even have ANY physical silver at all??? Probably already in a state of technical default.