It would most likely be a pricey black market. I doubt the government -- especially one like we have now -- would allow a free an open exchange of precious metals. After all, the government's goal is to steal our wealth via currency devaluation. Can't do that if we're converting all our wealth into metal. Remember FDR's confiscation of gold in the 1930s.
Still, I don't see any other option. The Fed is printing like mad....
I agree: you guys have a unique stressor in that your Government has indeed historically stolen your Gold.
Governments of course are also trying to steal our pensions, the land under our feet, the right to breath out CO2 etc: Gold is simply one more thing for them to steal, and harder to steal than most assets.
Rules for hiding your Gold:
Bury your gold, preferably on land you control. It won’t rust, but burying it in a short length of PVC pipe won’t hurt.
Floor safes that only you and one other (see below) know about are also a good option. Safety deposit boxes in Federal jurisdiction are a bad idea.
Tell exactly one person whom you trust with your life, who is an adult and *not a member of your close family* where that gold is, and what they should do in the event of not hearing from you for (say) three months.
Don’t tell the secret of your gold (even the fact of its existence) to anyone who might be caught up in an armed visit to your house: that’s why I say “not close family members”.