If you need headlights because of something other than the dark discolouration spots, I have two original complete headlight assemblies from a 2000 Boxter.
I replaced them because I live in a country setting with few street lights and therefore I used my high beams often (which is what I believe caused the dark spots and some cracking of the inner lens). If you drive normally on streets with street lights, these lights are fine.
New ones are expensive, Xnon are even far more plus they need a wiring upgrade.
Make me an offer.