It should have a kit if it's a VX S pack. The kit should be nearly identical to the VX SS, just minus the fog lights (unless the previous owner has installed them?) and not as aggresive rear spoiler from memory. Simply add the SS fog lights and a nice set of wheels and it will be hard to pick from an SS.
I'm not a huge fan of aftermarket bodykits, but that's just me. C2R make the best aftermarket kits on the market by far. They are made from polypropelene plastics which is what car manafacturers use from the factory. Find them here
www.c2r.com.au
Here are some sites that maybe of some assistance if you want fibreglass etc.
www.ssv.com.au
www.hdt.com.au
www.sve.com.au
www.adelaidespecialvehicles.com.au
www.fibremaster.com.au