For Hardware I could recomemend HP ProLiant Servers, speficially the HP DL360p Gen8. Got one with 2x Intel Xeon E5 2687W v2, 192GB RAM, 8x 480GB Micron Datacenter SSD for ~3.200€. Take 5 of them and you get a enormous Virtualization-Cluster. And a fitting datacenter would be the Equinix, Telecity or Telehouse (all located in Frankfurt am Main). For more Datacenters take datacentermap.com as an example.
Kind regards,
Tim