How would it work with paying people?
The money mod that I use works with Slayer, where you can set specific teams to have different incomes and it uses score. However, there is no ATM system (you don't drop money when you die though), and my buy events are separate and does not give the brick owner the money. Also, I can't give it away because it's private and isn't made by me.
However, if someone were to make a different version of this concept it would be fantastic if it worked with buying events and an ATM, too.