Around 200. It's not as good as an R5 1600 build which wouldnt be much more than 400 new I'm guessing. Not a European so not 100%. If it comes with case, PSU as well then make it 300 maybe. No GPU mentioned though so you have to add that as well. Soon as something is second hand half its cost as a starting point as a rule. That hardware is 5 years old so take that into account (5years of being over clocked). My 7700k died after 5 months of being overclocked. I picked up a couple month old gtx 1080 for $600. Guy gave me the receipt for $1100 new price. Just had to have those 1080ti's in his system. Second hand if it's not a great deal for you then don't bother in my opinion.