You can specify how many GPUs are in your rig and I will make a custom cabling solution for you that includes PCIe cables and 160w pico PSU for motherboard. I also can also include usb risers that work off of 12v (6pin connector) With one PSU you could easily power a 10x 1080ti GPU rig.
I have two IBM 2880W PSUs left. 100 euros each
Custom cabling is 50-80 euros depending on the total length and amount of PCIe connectors (price includes pico psu).
Cables will be soldered on to the original backplane connectors and then covered with epoxy:
https://media.digikey.com/photos/TE%20Connectivity/3-6450860-5.JPGPower plug will be EU standard: CEE 7/4 but I guess I could do a IEC C20 plug if needed.
If you want to diy it, then I can supply you just with the 6+2pin pcie connectors with 30cm 18awg leads and backplane connectors.
Each 6+2pin connector with leads is 2 euros
Sata / 6pin powered usb riser: 7 euros
Payment with Bitcoin (or any other altcoin that is supported by Kraken) / Paypal
Will ship worldwide from Estonia with any service you like or I will use standard local postal service.
To EU shipping is 20-30 euros
To USA around 60 euros
Feel free to pm me and ask.