Quick calculation:
Profit/h: 300k/h (depends on your but/sell prices of the ores and bars)
Profit/day: 4,8 - 7,2 mill (considering 16 to 24 hours of runtime)
Profit 4 accounts/day: 19,2mill - 28,8mill
The profit is calculated from osbuddy prices.
So if you buy ores cheaper and sell bars higher, the profit will be higher.
HInt:
In the weekend the barely bann bots, do feel free to suicide 48 hours on fresh accounts
Hope this helped a bit.