It is hard to work if your group is made up of random people from this forum. It will be hard to coordinate your moves and somebody might just be there to backstab you before you get into profit. It is better if you have real life close friends to help you with your pump and dump agenda.
Pump groups do not work like that, pump groups are another form of scam, a group of people think they are going to collaborate to pump the coin but the truth is that the organizer of the group and some insiders know beforehand which coin is going to be pumped, then when the coin is pumped by the members the owner of the group begins to withdraw and getting earnings that way, and where does that money come from? From the members of the group.