Use a UK Limited with nominee shareholder/director. (setup £900) You can also have the nominee director open a UK bank account for an extra £1000. This will give you access to paypal, and via TransferWise a UK, US and EU IBAN.
Total initial investment will be around £2500 (virtual office). Get a UK simcard (from 3) at Ebay.com.
If you are unable to invest this money, just pay the taxes locally.