Up to 1500 Euros for the whole rig.
But god damn, everyone is mining I couldn't find any cards in stock in whole Europe I'll post an update as soon as I get my hands on some frickin cards
Quick and dirty:
gamer case with 4 (in total) 120mm intake (!) fans
650 - 850W gold powersupply, maybe EVGA 750 GQ
ASRock B150M / B250M motherboard (take care of the space between the 2 PCI-E x16!)
2 x 4 GB DDr4
G4400 / G4600 CPU
any 120GB SSD for the OS, maybe USB-Stick with Linux
2 x GTX-1080Ti
... (no mess around with risers and so) should ROI fast !
Quick ROI.. mining what? take ZCL. that's 3 months of mining.