subbed some more scores with mine now
also @ObscureParadox pointed me to this new information
https://www.cpu-world.com/CPUs/Xeon/TYPE-Xeon E5-4600 v2.html
https://allthingssurplus.com/2x-intel-blackops-6-core-4-60ghz-2011-socket-engineering-sample-cpu-a19/
not a clue, these things are super hard to find. i'll keep a look out, but impossible to find. Are you sure the 10 core is unlocked? from the ebay listings i can see it seems limited to 3.3ghz?
to avoid import fees you would have to send it as something which was worth $10-20 or something depending on the country, so it would not be insured or whatever if it got lost or damage in post. i know in uk you get charge 30% extra for import like that.