Stratton is right, the blue one is indeed the EDM Sport bumper (this was one of the 2 bodykits made with approval from Nissan, the other being the MS Designs kit).
It was modded for the turn signals (from a Golf Mk 3), and the headlamps are off a BMW (which also meant the "bumps" had to be made to make everything line up properly.
As for the purple one, the holes for the headlamps have been shortened so the Golf Mk 3 aftermarket lamps fit better. It's a type you can find anywhere, they come in smoked and chrome, and it's the most used headlamp besides the stockers.
As for wiring, it shouldn't be too hard, it's just a matter splicing in new plugs.