noob trying to start mining ethereum

hello i want to buy 4 rig (this setup)
Celeron G1620 Processor
Asrock H81 Pro BTC motherboard
6x AMD MSI RX 480 GPU(Sapphire,XFX,Powercolor)
Fury DDR3 8GB Memory
Kingston 120GB SSD Harddisk
EVGA 1300w power supply
Windows or ethOS operating system
plug and play setup
Uses ONLY 990w of power

how can i setup it to start mining , how much can i earn , can i earn about $33k per year ?
Cost per KW/h is $0.07 in my country
which wallets should i use and pools , where to exchange then ?
thank you all, best.