I have them on my Gen 1, the brake carriers were modified to the fork stanchions to carry the special components. The bike came that way when I bought it. The front part of the fender looks stock, I am not sure about the rear section of the fender.
I run them as well front and back. When I had the stock calipers everything bolts right up normally as it comes with the additional bracket for the rear bolt for the fender. So a stock fender should work just fine.