Congrats on the new wheels mate, great car that. Your best bet to get the 2.0GT or the 2.5GT badge if via japanparts.com. It takes some finding but they are on there i've seen them. (everything is on there, some are awesome but most are expensive)

UPDATE

i had a search and i found the part numbers
2.0GT badge in silver is part #107-012-001
2.0GT badge in gold is part #107-012-006

sorry i didn't look for the 2.5gt version and it comes at a bargin basement cost of 2,900 yen(JPY)which is about (37.41 AUD) for a bit of plastic.