I don't know if he posts on here much but Dmboy_wsu over on pstoc.org has one he's hit up regularly. Tracked down two windows for me. It's probably down in Tacoma area though.
Several years ago I visited Nix99 Import Recycling, TOYOTA/LEXUS specialists. 13718 Mukilteo Speedway, Lynwood, WA.. Take Exit 186 from I-5. phone: 800-782-0682, 425-743-2881. www.nix99.com