JDM/Euro bumpers look the same, but they are different, The JDM one does not stick out as far as the USDM one, So its "nose" is flatter. This prevents the ability to be able to retain the USDM crash beam.
Main parts that are needed for the conversion are:
1 Front bumper upper half,
2 lower grill half. tow hook cover,
3 both sides of the black plastic "vents",
4 both sides bumper retainers ( the pieces that clip the bumper to the fenders)
5 Front Crash beam
6 Both Front crash beam arms
8 The thin black vent (mustache looking part)
7 if you want to do it correctly, all of the foam pieces that go between the bumper and crash beam.
Note: The emblem transfers over, and some JDM bumpers have holes for parking sensors that will need to filled with dummy sensors or plugs. some European bumpers have headlight washer sprayer holes, and the Euro plate is longer so it has 4 mounting holes already drilled into the bumpers.
Used bumpers can be found online but shipping them overseas is expensive.