hey mate, i think Chasers would probably be an ideal place to get the GTR looked at. they have built/tuned a couple of gtr's with power outputs of 430kw at all four wheels, so in my opinion they do have a fair bit of knowledge on them. Your probably best of giving them a call and having a chat with them and seeing for yourself whether or not you'd be happy for them to look at the car. Anyways goodluck with it all, hope you get the car....let us know how it goes