I got hold of some clear rears and ran a crossover cable to switch the fog and reverse lights. Nothing too dramatic, the part that took the longest was removing the rear bumper! If you're unsure drop me a pm and I'll talk you through it. Or if you happen to be near Paderborn at any point I can show you!
There seems to be a lot of misinformation flying around about headlights. I would suggest checking what people at your local BFG testing dept have passed with. I got hold of some 2nd hand euro-spec lights but they're like hens teeth. If you can get a pass with US lights like Danny that would probably be the easier - and certainly cheaper - option.