You've probably seen it but there's this one on eBay, pricey but cheaper than new and you can make an offer on it. http://www.ebay.co.uk/itm/NISSAN-350Z-06-09-PASSENGER-SIDE-FACELIFT-XENON-HEADLIGHT-COMPLETE-LEFT-REF718-/161990538116?hash=item25b7637384:g:KeMAAOSwll1W0VKT
If you mean the strips that are actually in the headlight then I'm sure Husky used to do them a long time ago or they are available in the USA still.
These?
Personally I'd go for the zed, I've had a Mk2 3.2 v6 TT from new and it was an unreliable piece of crap I know the TTRS is different but just saying. The pug I have no knowledge on and porkers, well I've hated everyone I've driven.