Data center to keep in mind for the future: https://swiftnode.net/dedicated-servers/london/
In their London location they have an i7-8700k for $149. This is the absolute fastest server for PA, according to mikey (though it is a desktop part, so reliability won't be as good as a server part): https://www.cpubenchmark.net/singleThread.html
If this was in the US, I would be considering moving us.