I'm currently running 75 ke30 jap banjo axles and ke30 front backing plates, rotors & hubs.
KE30 axels stick out 10mm further out each side, I'm running 185/60/R14 and it "just" scrapes, so I'm getting the stock axles redrilled at the moment to bring the track in back to original and should be all good.
front brake upgrade went right on, didnt need to change bearings or anything,