I just helped my boss order a fillet from the guys at Red Rock Tools. The maker has posted a few times in the Knifemakers' subforum, that's where I found him. A google search for "Red Rock Tools" will land you on his website. I have a CPM S35VN fillet w/ walnut handle coming in about a week!
Another +1 for red rock tools, I have one in Vanax I got from the Exchange that is amazing!