Devo, will this be enough mud clearance? The tires are your Ritcheys. I believe there is more room than on your Curtlo. I gotta say, and I'm just sayin', the Paul dropouts are a pain. Do you want the 433mm measurement from the center of the axle slot or bottomed out?
Hard to do the scallops. The threaded boss precludes using files and not much room for a rotary tool. I'm thinking hours of tiny pieces of emery paper.