Yep, it's a straight fit. All you have to do is chop out a bit of the re-inforcement bar. Also make sure that when you spray the bumper you add some flexing agent. Theres some pics of my GTS with GTR bumper here!
Forgot to mention.....that the standard bonnet won't fit. If you want it to fit you will need to chop a bit of the bumper away near the headlights. Those bits are taller on GTR's coz of the grill and different bonnet! I can sell you a carbon one for £400 though!
From Rocket Ron at RK Tuning. He's got quite a lot of goodies at his shop. He does those cool gurney flaps too. You know...the Nismo N1 spec (or whatever it's called). They're fibreglass copies and around £100 I think! That'll finish off a GTR/GTS rear end I reckon.
About two years ago when I toyed with the Skyline idea for the first time I went to those forums, a helpful bunch of guys, I must admit though that recently I've only been coming to this forum .. Maybe I'll open two Explorer windows from now on
If you need any help sourcing parts give me a bell. I would also consider making you a fibreglass bonnet for 1/2 price. But it'll be held on with pins. Wouldn't use the original mounting points. That's too advanced for me at the moment