You have closed your thread so I can only post an answer this way
In your other post in allaboutcircuits you have also been suggested to use a gate voltage higher that the drain voltage, you didn't accept it there either, you want to do it your own wrong way.
1/4 of your power will be consumed as heat on the high side mosfet if you keep using the drain voltage to provide the gate bias in the high side Nmosfet.