Just a thought. Have you taken into account the European Small Craft Directive, assuming you will be flying the flag of an EU member state?
If you import a boat into Europe then it must comply with the directive and you will need to have it tested (if the manufacturer has not received approval). Also, there is the issue of VAT. This tax is payable once only and it does not matter where you live or where the boat will be registered (if in the EU). However, the percentage varies from mamber state to member state. Check it out to be sure but I believe, if you are liable for VAT on the boat, then your best bet would be to sail to the Azores (Portugal) and pay VAT there and not gop directly to the UK. I think, but again am not sure, that the VAT rate in Portugal is only 14% whereas in the UK I believe it to be 22%. Going via Portugal could save you a lot of cash!
Aye // Stephen