About a billion of them here in Aus as
@mudgudgeon said. You should look on ebay.com.au, or you won't see listings that don't advertise postage to the US. There's this one for example:
1995 LANDCRUISER LEFT HEADLAMP. - 80 SERIES, GX/GXL, TWIN SQUARE, 05/90-03/98 A638. Local pick up. Manufacturer : TOYOTA. Flat price applied. - Location: WR1.A.06.0805.
www.ebay.com.au
But you'll see it only advertises postage to Australia. If you search on the ebay.com site you won't find this one doing the search. Best bet is to search on the Aussie site, and if it's listed as Australia only, contact the seller and see if they're willing to post internationally. You'll need the surround as well as the light cluster, which looks like this:
Find many great new & used options and get the best deals for Toyota Landcruiser Left Head Light Surround FZJ80 05/1990-03/1998 at the best online prices at eBay!
www.ebay.com.au