How to sell btc in large amounts the smart way?

First of all i dont want to sell right now. But lets just predict btc goes 100.000$ and i want to sell as soon as posebly maybe 5 btc at once, what is the smartest way to do it? I live in germany and have full verivied accounts on binance and coinbase. In my opinion the best way is:Btc trough ledger to binance and there convert to usdt. Then usdt back to the ledger and from there selling in small amounts on coinbase.I am afraid my funds geht locked on binance or coinbase for what ever.Am i right? Is this a good plan? via /r/Bitcoin http://bit.ly/2SXnveO