I think John18d is right. I bought the Racer magazine in preparation for when I build my kit and I don't see any similarity to the swing arm/brake rotor set up Fujimi has moulded in their kit. Maybe a different version that doesn't show up in my book. In all the pics I have the brake line runs down the opposite side to the chain and connects on the outside of the caliper which is very different to what Fujimi has done in your pics. Do you want me to scan some of these pics and send them to you or do you already have reference pics?
DJ