If your desperate for physical eBay is probably the only place or you could try the forums. Personally I would just get unallocated and convert to physical at a later date.
I would just buy unallocated and convert to physical at a later date. Silver is already hard to come by forget about platinum. I do have some Platinum 1/2 koalas but will only part with them at $800+
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It's still rather cheap and a lot rarer then gold. If it gets used in fuel cell technology then the price goes boom. I only have a small allocation in platinum as a side bet
I'm sure all dealers hedge so it wouldn't matter what the price would be. If they didn't hedge I wouldn't be buying from them because all it takes is spot to drop and they could go bust