Project Mu offsers a Euro line call the Mevius for most European applications. It is identical to the regular Project Mu BBKs just rebadge with a different color.
Standard 6/4 setup on 355 mm 2-piece rotors should run you just around $4,500.
BBKs are the biggest mark-up in the automotive industry. Be smart and research the manufacturer. For example, Rotora, Greddy, Junction Produce, ATS, STD all use the same mold. Essentially the same thing.
Back to point, if you are looking for a set of EuroMevius BBK, contact Mach III in San Francisco.