Gold would be a bad idea. Casino a very good idea. But not in the same context. Instead of slot machine, black jacket table. Here is why, unless you win 1200 dollars a hand constantly, you dont have to pay taxes. Yes I know there is the same limit on slot machines, But they have this stupid rule, overall combined winnings.
In 3 weeks playing cards right ( yes pun intended) you could easily swap your cash bill for bill. Best part tax free.
Now if it were me, I would consider this..... and surprised my fellow stoners never said it:
Find a damn good close relative, ship him that beloved car of yours he always wanted, right of the showroom ( Plant money in tank of car, gas hides smells and yes dog can smell currency).
Be sure whatever you place the currency in is fuel proof.
Dont like that rent or buy a yacht, take a nice cruise of the gulf of mexico pick state of choice to do so. Sink currency again in the boats fuel tank, make sure it is the internal tank or water tanks.
Dogs from coast guard cant smell thru liquid.
Dont tell anyone shit about your travel route.
There nice bullshit story but there is your bullshit answer, some of it true and real.