I did check coinbase fees but it's near impossible to get an estimate on how much it will cost.
Actually.. it is completely transparent.
You don't have to "estimate" anything. You can just calculate it.
Then the actual fee is a mystery.
It is not.
I told you how to calculate the total fee. And others have shown where the coinbase fee can be found.
You literally just have to add those two numbers together.
Yet as many times I have asked this no one can give an answer. Thats the problem, it's too complicated.
Complicated?
Subtracting the coinbase fee and trading fee from your total value is too complicated?
If so, i suppose the whole "magic internet money" is too complicated for you. You'd better just sell your remaining BTC and don't get involved in such complicated things again.