"I don't want the bars to sit around collecting dust, I want to be able to make money off of them"
- to make (even) "more money" out of them should not be a priority, right? I mean, why should it? Is it really such a difference to have e.g. 40Mio (in gold) or 60mio (cash÷nds)?
- so, if it is not about "making more money", why not keep the gold you don't need to be liquidated for spending? The gold will be there tomorrow, even when it collected dust. Nobody knows about tomorrows "value" of the nominal cash from a one time sale you would received.
- to liquidate just the amount you need for your day to day spending on your consumption, sell some flakes of a bar to your local Cash4Gold shop. If it is bigger, go to Switzerland to a refinery.
- Government will be interested anyway, regardless if it is gold or cash. So with keeping the gold, you might be better off, than with having the cash in a checking account instead (remember wealth tax?).