Nose is different. You can use the guards, bonnet, inner guards, and stone trays at the front. You can use your radiator support to repair a rusty Statesman one and the reflectors in your lights to replace bad Statesman ones. What you need are Statesman:
Support
Nose panel
Grille
Lights
Bumperettes
Numberplate mount - can use plastic ute one but not as nice.
Also proper Statesman guards have small nutserts in the side for the bumperette to attach to, but you can get these put in by copying a Statesman guard.