Why not make transactions in steps of 0.5 btc? It's better to risk a little at a time.
you got 4k usd for risk mate ? if so you are the dream of all scammers around
The important thing is to find a good buyer.
No transactions in steps of 0.5 btc? Ok, you can always lower the amount.
PS: I am not a seller or exchanger.
I would do $1 at a time, he goes first.