Just paint it black...Ha!
No, seriously, I understand where you are coming from... but the 50hz xformer in those Euro-cases take up a bit more bulk. If it for collector reasons, then ypu'll just have to keep trying. Lando, or some others may know the location of Peter Hanson or Steve Morgans from the old "Thunderbirds" group. They were real good scroungers. Christian Schafner might still have access to some.