Just tested one of the cpu's. Handles about as much wows(16) as my old i7 3930k, but somehow the turbo didn't go all the way up and was stuck at 3.2 ghz. But this means that I'll easily be able to 30 box with this pc alone :D
Cinebench score was 968, but this is with 3.2ghz throttle and not full 3.6ghz. I'll solve this in the following days.
Edit:
I am going to complete this system with the following:
500 Euro for Case, PSU (1500watt), Mobo and cooling. It's an HP Z820 workstation case with everything but cpu's, gpu and ram.
60 Euro for 32gb EEC 1333mhz RAM
20 Euro for 2TB HDD
10 Euro for SSD Bracket (needed for this case)
Meaning that so far I have spend 790 Euro on a pc being able to handle at least 30 wow's. For now I'll just use my old gtx970 and put a very old radeon 5880 in my old pc (I used to run 10 wows on this and gpu was the bottleneck). If I will keep using my old pc, I'll buy another gtx970 second hand, prob for around 150-200 euro.