Headlights: conversion / conversion?

Hello! I imported a car from Japan that only existed in Japan. Now the headlights for right-hand traffic have to be upgraded for the TÜV. German version does not exist and therefore unfortunately no headlights for conversion. Does anyone know who can retrofit the existing headlights for right-hand traffic? The original look should not be changed. Technology and reflectors could of course be replaced. Does anyone have a tip? Greetings Charl y