Nice dude Berlina dude, great cars.. Might be Bias but
...
HBD front lip = eBay.. $165 + postage.
Foggies = eBay for the black ganish + Chrome light rings.. Or Holden.. (Chrome from Holden super costly)
Fog Lights them self, get the Narvn? Kit. Cheaper then the $180 holden wants for just the lights
Fog Light Switch= $40 from Holden. CHEAPER THEN EBAY!
All the Calais Satin Chrome bits - get prices from holden and then look on eBay.. Holden is cheaper ive found for some bits..
Need to get VZ Calais lights and Reflectors IMO, or VZ Berlina/VY S2 Calais lights. Choice is yours.
VZ Calais Bumper extensions and skirts would look nice to.. Same as what im doing/done.
You mentioned taking off the Berlina Badge, yet you wont get a exhaust cause its a luxury model? Ahh? Arnt you now just making it look like a VZ acclaim with no Berlina badge?
Meh..
Exhaust maybe consider a twin cat setup with a stock VY SS exhaust, slight improvement over stock, yet not loud. Or/and if you want get extractors.. Will imporve the performance, and wont make it that loud!.
Performance mods for the ecotec.. ahh.. not worth it.. EG. A turbo kit may be $5k.. But once all the other things are done, like tune, gearbox etc.. Its closer to $15k. More then initial purchase price, or close to it!.
If you want a faster take off diff gears would be a thing to look into.. 3.46 would be good for all round driving.. Will beat a stock ecotec off the line... And still be good on the open road!
Kings Super Lows all around will give it a nice stance like you want... Check my car for pics of that....
Again.. Nice car.. Should turn out good!