Nah, not too bad. I dremeled off the 200mm fan mount. I actually had the acrylic cut by someone else because the temps here got too low and the acrylic started cracking everytime I went to cut it. Had the temps stayed above 30 degrees when I was doing the project I would have done it myself. You can see the results in my Project 12 buildlog here:
Project 12 (Phantom 820)