What do you want kind of rides to do with this bike and where will you be riding? If you end up going for the Marrakesh just ditch the rack and get a proper Tubus rack!
Will be riding through trails like this but will also be riding on-road to get there, so don't want MTB but a pure CX bike might suffer. Basically 2" tyre clearance would be great, and braze ons.
What do you want kind of rides to do with this bike and where will you be riding? If you end up going for the Marrakesh just ditch the rack and get a proper Tubus rack!