I'm not sure why VW's and bikes go hand in hand so frequently. I know I've used tons of VW parts on my bikes. So while I'm sure this has probably been done a hundred times , I haven't seen it, so here goes. An old VW reverse light can be mounted pretty easily on about any bracket, while you may have to drill out the hole a bit. Just swap the 12V bulb to 6V (unless the light comes from a 6V) By the way, a VW brake adjuster makes a perfect mounting nut and looks a little more industrial. You don't see square headlights too often on bikes. I think it's a cool mod that keeps it old-school but looks very different. I'll try to get the pic of it on the bike, but the camera batteries need to charge and this is the only pic I had
Also, these lights have plenty of room in them for an LED conversion. Plus you have the added "HELLA made in germany " lense