there are a few import GTIs around normally they are registered as a 2007 but actually are a 2005/2006. mine is a import from dubai registered as a 2007 but is a right hand drive. the V5 is pretty much the same as yours too. normally you will find that these come with the AXX engine. in terms of getting parts just ask for the AXX engine parts as usual if ordering from main dealer or elsewhere. i haven't had any trouble to date to be honest.
my car was well spec'd when i got it (although i was like your mum not aware it was a import till later) - it came with self levelling xenons, sunroof, heated folding mirrors with puddle lights, rear parking sensors, drivers electric seat and a few other bits i can't remember. see my build thread for more info