The 430 kit is more accurate than the 360 if anything. The rear quarter shape and area where the bootlid meets the rear quarters was tweaked when they did the 430. The main panels are perfect as they were moulded from my brand new genuine 430 panels. The genuine 360 and 430 body frames are essentially the same i.e. you can update a 360 to 430 looks. The doors, bonnet and roof are exactly the same. The front wings are the same contours just with different cut outs for the lights, so the conversion of the extreme 360 kit to extreme 430 kit was relatively simple.
The panels that needed to be changed were both rear wings, rear bumper, bootlid, both sills and front bumper. The front wings were modified to take my genuine lights, so the cutouts are spot on shape. The front lights again were moulded from my genuines, so perfect shape.
To get the look perfect it just needs careful work to make sure you end up with nice curvature on the roof and curved tops to the screen. It also needs the suspension set nice & low so the stance of the car is right.