Help with head lights??

I am buying aftermarket headlights for my 2003 c230 coupe, but i have a question?
I am buying it off of 2004 c230 sedan and jsut wondering will they fit? since i live in cdn and parts are from anotehr country i cant go c!, any suggestions please.
 
Also the head lights are bi xenon and have HID kit with H7bulbs running them, so my question is i have regular head lights meaning they are originally not xenon or bi xenon, but mine are also running through with HID kit with H7 bulbs, so if i install the new head lights do i have to change my light control unit since my car is not bi xenon or xenon.?
 
last question will tein SS coilovers from a 2004 sedan fit a 2003 c230 coupe?
 
thnk u all for taking your time to help!