For the clear indicators/blinkers, there is 2 styles her ein the US. And you are correct, neither will fit. One is a 2 piece design, and the other is a single like yours, but much shorter.
As for the headlights. they will bolt onto your car fine. 2 issues:
1: They use different bulbs. Outside bulbs are the Low beam, and inside is the High beam. You can easily make your own wire harness for it.
2: Yes, the beam pattern is different, so you'll need to adjust the the lights in a big way to be good. As well, they do not put out as good of light as the OEM US headlights do. You CAN get them, and do a custom HID retrofit using a Projector from a car there.
This is my friends car:
(Ok, don;t have pic. I'll take a pic tomorrow and post it for you)
As for the Spoiler, if it's the same one as int he pic below (my car), it is RARE. I was just seeing something on that spoiler, and it was not attached. It;s on my friends car now. I've been trying to get one for 2 years. And if you find one, they can sell over $200 used. They do not exist new as faw as I know.