This is a terrible idea, with the bitcoin's price we have now converting it to fiat to buy some gold, I don't think so, same like you buy high and sell low, same stuff.
It would be better to buy gold with fiat at this price dont you think? Save up bitcoin, dont spend it now that the price is low. Its the time to buy bitcoin as well.
It would not be bad if you are going to do this when the market is in bull run, convert some of your bitcoin then buy some gold to have something that is stable and the price is not going to go down drastically like bitcoin and other cryptocurrency.
Hedging the bitcoin for gold? I would suggest that but not 100% conversion though. You would want to keep some bitcoin in hand and convert the rest to gold for future. Other precious metals are also good to look into if you have time.
The problem of having a gold is that it could be stolen easily if you are not good at hiding it in your house, you could put it in the bank but not a really good idea after all, for me.
You could get a vault at your bank. I know its one of the downsides of a physical asset being of value, but it is important to keep gold because it is the thing that you would give to your next generation for inheritance apart from fiat money and if it permits, bitcoin.