I would keep the fork, myself. The front brazeons are convenient, for years no stock bike had them, even after the Blackburn front racks became widely available. Even though your fork is beefy as aluminum goes. Be careful adjusting the U-bolts not to really crank on them. Most of the load will carry fine on the fender attachments, the the mid fork is mostly going to limit rotation.
Since your load will be mostly on the dropouts, if it were me and I was mounting front fenders, I would be trying to get closed loops on those so that the rack mounting would be very solid. The fender stays are often just bent over wire and can spread open or simply create off-center loads under bolt pressure.