I got my badges from Hunter Holden in Oz and on Ebay.
The top center rear deck rebadging was a little tricky as removal of the red wedgie leaves two alignment holes...careful placement of the HSV badge-- originall for the car's hood-- covered those holes up. Removal of the airbag badge is a bit tricky, but patience and a set of dental picks wins the day. The others were easy.
The Pontiac sign in the DIC at start-up was removed and replaced with the HSV logo via Chris "GTPprix" White's shiftlight / shift tone software flash mod.