I would like to replace the front end on my Peugeot 307 hdi,

Hi I bought a peugeot 307 on a 2006 plate, the front end - bonnet, bumpers and I'm assuming lights ( not sure if they are the same??) are off the older model, I have had the car checked thoroughly it's not stolen or a ringer! I would like to the newer bonnet and bumper to bring it back in line with spec, do I need to replace the wings and lights too or will it naturally just fit?
Any help would be appreciated.
Regards
Jamie