This is what I can help to set up:
Intel® Core™ i7-6700 Quad-Core
64 GB DDR4
2x 500 GB SATA SSD
GeForce® GTX 1080
Linux: selectable distribution.
110 EUR / month.
A cheaper option (though I am not sure it is sufficient for you):
i5-3470/GTX-750-Ti-2GB/16GB-DDR3/Linux-or-Windows: 60 USD / month.