Thanks for your answer, after all I could have it:
EX-RX570-O4G or GV-RX570AORUS-4GD are around 380USD each, so I could get 3 of these GPUs, after all it would be:
Asrock H110 Pro 13 PCIe LGA 1151 ~ Around 365USD
Corsair 1000W 80 Plus Gold Modular RM1000X - CP-9020094 ~ Around 290 USD
3x GPUs - Around 1200 USD
Pentium G4400 - 70 USD
RAM 4GB DDR4 24400 Mhz - 90 USD
Is there a specific manufaturer I should look at GPUs? As you can see above Asus/Gigabyte are on the same price, thanks for Risers link btw, I'll be ordering it asap.
According to Whattomine, I would be getting around $6.77/day in ETH, if I choose to mine ETH should I change anything?: