Hey welcome,
they are nice Zeus for the price and mileage I would look in to it though I have. Imported Z and I would say make sure you know what you are looking for when you go check the cars, like any car really. However you are buying a lot of car for your money and the slightest of problems can turn in to an expensive do as I have found out myself, not to put you of like they are a reliable car and there's plenty of guys on here that will help you through any problem.
More to the point not a lot of people like buying imports because there can be some differences with insurance companies and some May be funny with them however most are fine with it the only thing that changed with my insurance was I didn't get a courtesy car if I needed one.
other than that they are pretty much identical small things may be needed to be looked at like if it has a rear fog light imports generally do not and I will stand to be corrected I'm just going off info I was given when looking for mine. Another point the headlights need to be adjusted to be correctly angled or something on them lines all these need doing to pass the M.O.T however if they have been in the UK a while I should presume they already have them but always check.
As I have just found out the battery is different to uk models being smaller and terminals being the other way round and some garages can be funny with imports I found this with nissan as they didn't have a 'imported parts book' which is rubbish to be fair.
Could go on more facts but they are only minor minor things that you will pick up your self if the problem ever raised or you was interested.