A quick search of "gc8 fenders" revealed many results and lots of pictures. Seibons are rather pricey and I could never justify that unless weight was so much of a concern it would justify it.
I hate to say it, but you might go that route since most of us are GD and GR owners.
Some of them looked rather tasty, I might say. However, opinion is to keep them color matched or the car tends to look a bit ricey or like you've been in a wreck and haven't gotten around to painting the new fenders.