Alright mate,
Just thought I'd let you know what my situation was when purchasing my Zed ...
I was all up for buying a 53 plate import and got a quote from a comparison site .. only to find that when I called the insurers up to confirm the details, their system didn't register that it was an import ... anyway after they corrected the mistake the insurance went up by a £1000.
I was 28 at the time with 5 years NCB and in the end I didn't purchase that particular car ... I thought it made more sense to purchase a UK Spec Zed for £1000 more and save on the insurance every year ...
Just make sure that they have the details correct on their system before you commit to buying the car ... I lost out on a £250 deposit for the first zed ...
Good luck mate!