Is that fork different from the Tange forks used on earlier touring bikes? I looked for one of them for a long time with no luck. Ended up using a Kinesis CX fork with P clips for the rack. Friend did a 1,000 mile fully loaded trip with it and had no problems. You might consider having a framebuilder add rack bosses to a Tange road fork. Rake will be off a bit but the rake difference didn't cause a handling problem with the Kinesis.