I think you can get imports serviced & get parts easily enough, it's just that *in general* official dealers tend to look the other way when you mention the i word.
There are tons of places where you can source parts if need be so I doubt that should pose a problem.
Can't help you on the import process but I think there are a lot of people driving imported scoobs over here. My legacy being one.
One thing worth mentioning though is that imports are mapped for 100ron fuel octane and the best we have here is 97 to my knowledge, which means to be on the safe side either getting it remapped or adding octane boost to the fuel. Some people don't add octane boost and I believe have had no problems (Dave?) but it is potentially risky to do so.
Fitting a knocklink device gives peace of mind too.
Good luck with it anyway and welcome to the forum.