Kev
just a thought, i presume you've factored in the cost of shipping it across from the states, but what about import duty and VAT. Not to sure on this one BUT i think Customs & Excise take the book value of what the vehicle is worth here rather than what you pay to avoid fictious claims on the value.
Might be worth a call to Customs & Excise just to check.
Also believe that even if it was on the register in the States as accident damaged it would not appear on register over here. Many moons ago i came across someone who imported accident damaged stuff from the States for this very reason.
Like the reference to the odd blemish